Hot Spot · 2020-07-01 · Visiopharm A/S – Agern Allé 24, DK-2970 Hørsholm Phone: +45 88 20 20...
Transcript of Hot Spot · 2020-07-01 · Visiopharm A/S – Agern Allé 24, DK-2970 Hørsholm Phone: +45 88 20 20...
Visiopharm A/S – Agern Allé 24, DK-2970 Hørsholm
Phone: +45 88 20 20 88 – Fax: +45 88 20 20 99 - Mail: [email protected]
Hot Spot
ID: 20114 1st edition
The Hot Spot APP is an image analysis application designed to conduct automated and objective analysis of
digital images acquired by scanning tissue sections stained with immunohistochemistry (IHC).
The Hot Spot APP is an accessory IVD APP compatible with various analytical biomarker APPs, e.g. the
Visiopharm IVD Ki-67 APP for breast cancer, when used with VirtualDoubleStaining™ (VDS™) supported Region
of Interest (ROI) identification.
In such cases, the APP enables analysis of the analytical biomarker expression within one or more hot spots.
Hot Spot – Package Insert – 1st Edition, Revision 20181121 2
TABLE OF CONTENTS
TABLE OF CONTENTS ........................................................................................................................................ 2
INTENDED USE ................................................................................................................................................. 3
SUMMARY AND EXPLANATION........................................................................................................................ 3
PRINCIPLE OF PROCEDURE ............................................................................................................................... 3
SOFTWARE AND HARDWARE ........................................................................................................................... 5
SOFTWARE PROVIDED ................................................................................................................................................ 5
SOFTWARE REQUIRED AND AVAILABLE FROM VISIOPHARM ................................................................................................ 5
SOFTWARE CHARACTERISTICS...................................................................................................................................... 5
HARDWARE REQUIRED ............................................................................................................................................... 6
Whole slide scanner ......................................................................................................................................... 6
Computer requirements................................................................................................................................... 6
PRECAUTIONS .................................................................................................................................................. 6
INSTALLATION, CONFIGURATION & CALIBRATION ........................................................................................... 7
INSTALLATION .......................................................................................................................................................... 7
CONFIGURATION ...................................................................................................................................................... 7
CALIBRATION ........................................................................................................................................................... 7
LICENSE ............................................................................................................................................................ 7
IMAGE COLLECTION ......................................................................................................................................... 7
OPERATING PROCEDURE ................................................................................................................................. 7
MANUAL REVIEW ............................................................................................................................................ 7
PROCEDURAL NOTES ....................................................................................................................................... 8
QUALITY CONTROL .......................................................................................................................................... 8
WHOLE SLIDE SCANNER ............................................................................................................................................. 8
IHC MARKER ASSAY CONTROLS .................................................................................................................................... 8
CONTROL IMAGE ....................................................................................................................................................... 8
LIMITATIONS ................................................................................................................................................... 8
ANALYTICAL PERFORMANCE CHARACTERISTICS .............................................................................................. 9
REPEATABILITY ....................................................................................................................................................... 10
REPRODUCIBILITY ................................................................................................................................................... 11
CLINICAL PERFORMANCE CHARACTERISTICS ...................................................................................................13
APP, SOFTWARE, AND PACKAGE INSERT VERSIONS ........................................................................................16
TROUBLESHOOTING ........................................................................................................................................17
SERIOUS INCIDENTS ........................................................................................................................................17
BIBLIOGRAPHY ................................................................................................................................................17
TECHNICAL ADVICE AND CUSTOMER SERVICE.................................................................................................17
Hot Spot – Package Insert – 1st Edition, Revision 20181121 3
INTENDED USE
EU: For in vitro diagnostics use.
The Hot Spot APP is intended for use with digital images as an accessory to in vitro diagnostic test for the
purpose of identifying one or more hot spots in formalin-fixed, paraffin-embedded tissue sections. The APP
supports Ki-67 assessment restricted to hot spots in combination with the Visiopharm APP Ki-67 APP, Breast
Cancer (ID: 90004). In such cases, the APP is indicated as an aid to the pathologist in the assessment of breast
cancer patients (but is not the sole basis for treatment).
SUMMARY AND EXPLANATION
Cancer has the ability to rapidly mutate and adapt, potentially creating heterogenous tumors with diverse cell
populations. In histopathology, depending on the immunohistochemical (IHC) test, it can be important to
evaluate a specimen in different regions such as the invasive front or hot spots where the tumor cells show
increased activity. This is for example the case for Ki-67 IHC, where one of the more recent approaches to Ki-67
scoring is the hot spot scoring method, that has been implemented in several scoring guidelines, e.g. the
Swedish guidelines for mamma-cancer (1) and the Danish guidelines for mamma-cancer (2). However, the hot
spot scoring method is often found to be subjective and prone to both intra- and inter-observer variability (3).
Using the Hot Spot APP a standardized and objective method for hot spot scoring can be obtained.
The Hot Spot APP is an image analysis application, that offers automated and objective analysis of whole slide
digital images acquired by scanning tissue sections stained with relevant biomarker immunohistochemistry.
The APP offers automated identification of one or more hot spots and reports the score for each hot spot. The
identified hot spot(s) are outlined as separate Regions of Interest (ROIs) on the digital image.
The APP is an accessory IVD APP compatible with different analytical biomarker APPs, e.g. Ki-67 APP, Breast
Cancer (ID: 90004), when used with VirtualDoubleStaining™ (VDS™) supported Region of Interest (ROI)
identification. In such cases, the APP enables assessment of the analytical biomarker expression within a hot
spot or hot spots rather than a global whole slide assessment.
The Hot Spot APP in combination with an analytical biomarker APP, e.g. Ki-67 APP, Breast Cancer (ID: 90004),
provides a supplement to manual and subjective scoring. The hot spot(s) identified by the Hot Spot APP and the
score calculated within the hot spot(s) must be confirmed by manual review of the results by a qualified
pathologist.
PRINCIPLE OF PROCEDURE
The Hot Spot APP is a software analysis protocol package which requires installation of Oncotopix® Diagnostics.
The APP should be used in combination with VDS™ and the module Tissuealign™. The principle of procedure
for the Hot Spot APP and the necessary configuration of Oncotopix® Diagnostics is described below.
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Workflow:
1. Open the serial whole slide image set stained with analytical biomarker IHC (e.g. Ki-67) and a tumor marker
(e.g. p63+CK7/19)
2. Link and align the images
3. Manually outline general area of interest (optional)
4. Run tumor marker APP to automatically create tumor ROIs
5. Run analytical biomarker APP within tumor ROIs
6. Run Hot Spot APP to identify hot spot(s) and compute score within hot spot(s).
7. Review result
Required software:
• Hot Spot (ID: 20114)
• APP for analytical biomarker (e.g. Ki-67 APP, Breast Cancer, ID: 90004)
• APP for tumor marker (e.g. Invasive Tumor Detection (PDS), ID: 20101)
• Oncotopix® Diagnostics with:
o Engine™
o Viewer
o Viewer+
o Tissuealign™ incl. VirtualDoubleStaining™
The Hot Spot APP consists of two protocols that:
1. Generates an Object Heatmap showing where the highest number of objects (e.g. Ki-67 positive
nuclei) are located. The method for generating heatmaps can be tailored to the customer’s needs before delivery, e.g. a ratio heatmap can be used to show where the highest percentage of objects
are. Hot spot regions-of-interest (ROIs) are placed based on the heatmap.
2. Calculates the appropriate object parameters within the hot spot(s), as defined by the analytical
biomarker APP that identified the objects. This is typically the number or percentage of objects within
the hot spot(s).
Note that the Hot Spot APP only performs mathematical operations on objects already identified with another
APP (referred to as the analytical biomarker APP). Thus, the Hot Spot APP must always be used in combination
with an analytical biomarker APP to function.
Fundamentally, the following configuration options are available for the Hot Spot APP:
• A square or circular ROI with a fixed size is placed where the highest number or percentage of objects
(e.g. Ki-67 positive nuclei) is found.
• An adaptive ROI that follows the heatmap contours is grown from where the highest number or
percentage of objects is found.
For all configuration options a minimum object requirement can be specified to ensure sufficient cells are
included in the hot spot. Any countable object (nuclei, cells, RNA etc.) can be used to generate heatmaps and
hot spots.
The configuration of the Hot Spot APP may depend on the type of tissue and staining, the analytical biomarker
APP used for identifying objects and user preferences.
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A configuration example for the Hot Spot APP is given below.
Heatmap type: Object Count
Hot spot shape: Circle
Hot spot size: 0.25mm radius
Minimum # of objects: 500
# of hot spots: 1
SOFTWARE AND HARDWARE
SOFTWARE PROVIDED
Hot Spot, ID: 20114, ver. 1.0
SOFTWARE REQUIRED AND AVAILABLE FROM VISIOPHARM
Required:
Oncotopix® Diagnostics, VIS ver. 2018.4 or later, with:
• Engine™
• Viewer
• Viewer+
• Tissuealign™ incl. VirtualDoubleStaining™
• APP for analytical biomarker quantification (e.g. Ki-67 APP, Breast Cancer, ID: 90004)
• APP for tumor marker quantification (e.g. Invasive Tumor Detection (PDS), ID: 20101 or PCK VDS,
Tumor Detection, ID: 20002)
The listed modules are available as components of different software configurations. If in doubt, please contact
Visiopharm to understand what is needed for your application.
SOFTWARE CHARACTERISTICS
Software solutions intended as a Client/Server based solution:
Permissions and user rights are based on Microsoft active directory or equivalent user access control. Rights
should always be granted through a user access control system with ability to monitor failed and succeeded
logons.
Software solutions intended to be deployed locally:
Solution can be deployed locally to a client with equivalent safeguards as defined in previous section.
Network characteristics:
Standard TCP/UDP traffic occurring in ethernet networks. Security measures should always be based on
customer requirements though antivirus and antimalware systems must be configured with exceptions for
APPs and software.
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HARDWARE REQUIRED
WHOLE SLIDE SCANNER
Whole slide scanners capable of acquiring 24 bit RGB whole slide images using bright field illumination at 20x
or 40x scan mode (min. resolution 1650 pixels/mm).
COMPUTER REQUIREMENTS
Use of the APP requires Oncotopix® Diagnostics, VIS ver. 2018.4 or later, with appropriate software additions
and introduces no additional requirements.
Table 1. Computer requirements for Oncotopix® Diagnostics, VIS ver. 2018.4 or later
Recommended Minimum recommended
Operative system Windows 7/10, 64 bit Windows 7/10, 64 bit
Processor Intel Core i7 or better Intel Core i3 or better
RAM 8 GB 4 GB
Hard drive SSD with 256 GB of free space before
installation 10 GB of free space before installation
Graphics Graphics with 512 MB and output for two
screens
Graphics with 256 MB and output for two
screens
Screens Two 27” screens Two 20” screens
PRECAUTIONS
EU: For in vitro diagnostics use.
Rest of World, incl. US: Research Use Only.
For professional users.
The accuracy of the test result depends upon the quality of the analytical biomarker and tumor marker
staining. It is recommended, that the clinical laboratory participates in regular external quality assessments to
ensure optimal performance of their IHC testing.
The number of objects in the identified hot spot might be slightly lower than requested by the user. It is the
responsibility of the qualified pathologist, during the final review of the image and the results produced by the
Hot Spot APP, to decide whether a hot spot, with a lower number of objects than requested, can be accepted
or not, or if re-analysis of the image, in accordance with the APP Review Operating Procedure, should be
conducted.
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INSTALLATION, CONFIGURATION & CALIBRATION
INSTALLATION
Installation of Oncotopix® Diagnostics and the Hot Spot APP is performed by Visiopharm in collaboration with
the customer’s IT department. Updates to third party software components (e.g. drivers), that are introduced after installation has been
performed, can introduce changes to how images are perceived by VIS and may require re-calibration of the
analytical biomarker and tumor marker APPs that are used in combination with the Hot Spot APP. Re-
calibration must be performed by Visiopharm.
CONFIGURATION
The Hot Spot APP must be configured prior to installation to ensure compatibility with the intended use case.
The configuration is performed by Visiopharm based on input from the user.
CALIBRATION
The Hot Spot APP only performs mathematical operations on objects identified with an analytical biomarker
APP. Hence, the Hot Spot APP is not dependent on the laboratory’s tissue preparation, IHC staining protocol or
slide scanning system, and does not require calibration to these parameters.
However, changes to the laboratory’s tissue preparation, IHC staining protocol, or slide scanning system may
affect the analytical biomarker APP and the tumor marker APP that are used in combination with the Hot Spot
APP and may require re-calibration of these APPs by Visiopharm.
LICENSE
A license for running the software is required. Do not use the APP without a valid service agreement.
IMAGE COLLECTION
Whole slide images of specimens stained for the presence of relevant IHC markers are acquired using a single
in-focus Z-plane at 20x or 40x scanning mode in 24 bit RGB using bright field illumination.
All data obtained by analysis with the Hot Spot APP is saved, linking them to the original digital image, thereby
allowing subsequent reviews and new analysis if required.
OPERATING PROCEDURE
See separately available APP Operating Procedure.
MANUAL REVIEW
The results obtained with the Hot Spot APP in combination with an analytical biomarker APP must be
confirmed by manual review of the images by a qualified pathologist. See separately available APP Review
Operating Procedure.
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PROCEDURAL NOTES
Oncotopix® Diagnostics can integrate with a laboratory’s existing LIS/LIMS, PACS, IMS or VNA systems. Hence,
the Hot Spot APP can integrate with CGI’s Pathology System and other LIS systems, which may be used instead
of Oncotopix® Diagnostics for the “Open Image” and “Save in Database” steps.
Please contact Visiopharm for more information about what LIS/LIMS, PACS, IMS and VNA systems Oncotopix®
Diagnostics and the APP can integrate with.
QUALITY CONTROL
WHOLE SLIDE SCANNER
The responsible operator must ensure that the whole slide scanner is calibrated, and if needed adjust the
instrument settings in order to ensure sufficient image quality.
IHC MARKER ASSAY CONTROLS
Staining quality must be assessed for each run of the analytical IHC test that is used in combination with the
Hot Spot APP. The staining quality must be assessed in accordance with the reagent manufacturer’s recommendation. This may involve staining and scoring of control slides and can be facilitated by the APP.
CONTROL IMAGE
Correct installation and operation of the Hot Spot APP can be assured by analysis of one or more control
images representing samples with known results by the APP.
LIMITATIONS
The Hot Spot APP must be used in combination with an analytical biomarker APP.
The APP has been validated for use with the Visiopharm IVD APP Ki-67 APP, Breast Cancer (ID: 90004). Use of
the APP in combination with other analytical biomarker APPs must be clinically validated by the user.
The APP has been validated for use on whole slide breast cancer tissue sections (resection specimens). Use of
the APP on other types of material must be clinically validated by the user.
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ANALYTICAL PERFORMANCE CHARACTERISTICS
The analytical performance characteristics of the Hot Spot APP were investigated in the study outlined in Table
2. Because the Hot Spot APP does not analyze the digital image, but the objects created by an analytical
biomarker APP that are overlaid the image, the analytical performance was evaluated by comparison with the
IVD APP Ki-67 APP, Breast Cancer (ID: 90004).
Three TMAs containing breast cancer specimens stained for Ki-67 with reagents from Dako, Leica and Ventana,
respectively, were analyzed together with serial sections stained for PCK aligned to the images for automated
tumor detection. Each TMA was scanned three times on a Hamamatsu NanoZoomer HT 2.0 (20x scanning
mode) and analyzed using the accessory IVD APP PCK VDS, Tumor Detection (ID: 20002), the IVD Ki-67 APP and
the Hot Spot APP to verify that nuclei were accurately identified. The three TMAs contained a total of 37 cores,
providing a total of 111 images of TMA cores by including the multiple scans.
The objects identified by the Ki-67 APP were compared to the objects identified by the Hot Spot APP and the
results showed they were identical, providing the following parameters:
Sensitivity = 100%
Specificity = 100%
Bias = 0
Accuracy = 100%
On Figure 1, the proliferation indexes (PI) calculated within the hot spot by both APPs are shown for all the
scans for each reagent.
Figure 1. Scatter plots showing the proliferation indexes calculated by both APPs on all the scanned cores
for each reagent against each other, showing perfect correlation.
R² = 1
0
20
40
60
80
100
0 20 40 60 80 100
Ki-
67
PI
[%]
Hot Spot PI [%]
Dako
R² = 1
0
20
40
60
80
100
0 20 40 60 80 100
Hot Spot PI [%]
Leica
R² = 1
0
20
40
60
80
100
0 20 40 60 80 100
Hot Spot PI [%]
Ventana
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Table 2. Outline of Analytical Performance Study
Material 37 TMA cores obtained from whole slide images of formalin-fixed, paraffin-embedded
breast cancer specimens stained for Ki-67, aligned to serial sections stained for PCK.
Reagents
Ki-67 (clone MIB1, Dako)
Ki-67 (clone 30-9, Ventana)
Ki-67 (clone MM1, Leica)
PCK (clone AE1/AE3, Dako)
Scanner Hamamatsu NanoZoomer 2.0HT (20x scanning mode)
Reference scoring
method IVD APP Ki-67 APP, Breast Cancer (ID: 90004)
Reporting
parameter Number and location of negative and positive nuclei.
REPEATABILITY
Repeatability of the Hot Spot APP was investigated in two studies, (1) where the same operator analyzed a
TMA slide three times and (2) where three different operators analyzed the same TMA slide. The TMA
contained 13 cores of breast cancer specimens stained for Ki-67 viable for analysis and was scanned using a
Hamamatsu NanoZoomer HT 2.0 (20x scanning mode). The analysis workflow consisted of de-arraying the slide
using Tissuearray™, aligning it to the serial slide stained for PCK, and analyzing the de-arrayed cores with the
accessory IVD APP PCK VDS, Tumor Detection (ID: 20002), the IVD Ki-67 APP and the Hot Spot APP.
Results were reported as center X/Y coordinate of the hot spot identified, and the proliferation index (PI)
calculated within the hot spot for each sample. Results are summarized in the figures and tables below.
Figure 2. Intra-operator repeatability on 13 TMA cores where the same operator analyzed the same scanned
slide three times. Error bars show standard deviation.
Table 3. Average pair-wise agreement for intra-operator repeatability. The agreement is based on how well
the placement of the hot spots and the proliferation index calculated matched each other.
Pair-wise agreement
Run 1 vs. Run 2 100%
Run 1 vs. Run 3 100%
Run 2 vs. Run 3 100%
Average pair-wise agreement 100%
0
20
40
60
80
100
0 4 8 12
PI
[%]
Sample
Hot Spot Proliferation Index
Hot Spot – Package Insert – 1st Edition, Revision 20181121 11
Figure 3. Inter-operator repeatability on 13 TMA cores where 3 different operators analyzed the same
scanned slide. Error bars show standard deviation.
Table 4. Average pair-wise agreement for inter-operator repeatability. The agreement is based on how well
the placement of the hot spots and the proliferation index calculated matched each other.
Pair-wise agreement
Operator 1 vs. Operator 2 92.3%
Operator 1 vs. Operator 3 92.3%
Operator 2 vs. Operator 3 92.3%
Average pair-wise agreement 92.3%
REPRODUCIBILITY
Reproducibility of the Hot Spot APP was investigated by analyzing TMAs containing breast cancer specimens,
stained for Ki-67 with reagents from Dako, Leica and Ventana, respectively. The three TMAs contained a total
of 37 cores and were scanned three times on a Hamamatsu NanoZoomer HT 2.0 (20x scanning mode) scanner,
providing 111 images of TMA cores by including the multiple scans. Serial sections of the TMAs stained for PCK
were aligned to the images for automated tumor detection. The images were analyzed using the accessory IVD
APP PCK VDS, Tumor Detection (ID: 20002), IVD APP Ki-67 APP, Breast Cancer (ID: 90004) and the Hot Spot APP.
Results were reported as center X/Y coordinate of the hot spot identified, and the proliferation index
calculated within the hot spot for each sample. Results are summarized in the figures and tables below.
0
20
40
60
80
100
0 4 8 12
PI
[%]
Sample
Hot Spot Proliferation Index
Hot Spot – Package Insert – 1st Edition, Revision 20181121 12
Pair-wise agreement
Run 1 vs. Run 2 100%
Run 1 vs. Run 3 100%
Run 2 vs. Run 3 100%
Average pair-wise
agreement 100%
Pair-wise agreement
Run 1 vs. Run 2 100%
Run 1 vs. Run 3 100%
Run 2 vs. Run 3 100%
Average pair-wise
agreement 100%
Pair-wise agreement
Run 1 vs. Run 2 100%
Run 1 vs. Run 3 100%
Run 2 vs. Run 3 100%
Average pair-wise
agreement 100%
0
20
40
60
80
100
0 4 8 12
PI
[%]
Sample
Hot Spot Proliferation Index - Dako
0
20
40
60
80
100
0 4 8 12
PI
[%]
Sample
Hot Spot Proliferation Index - Leica
0
20
40
60
80
100
0 4 8 12
PI
[%]
Sample
Hot Spot Proliferation Index -
Ventana
Hot Spot – Package Insert – 1st Edition, Revision 20181121 13
CLINICAL PERFORMANCE CHARACTERISTICS
The Hot Spot APP does not provide results for diagnosis, but it may be used in combination with an analytical
biomarker APP that does. In such cases the contribution of the hot spot APP to the diagnostic workflow is the
identification of one or more hot spots. Thus, the clinical performance characteristics of the APP have been
determined by comparing hot spots identified with the APP to hot spots identified with an established
reference method for hot spot identification at the participating sites on Ki-67 stained breast cancer resection
specimens.
In each conducted study the assessing pathologist was asked to place a hot spot on at least 30 whole slide
images. Afterwards, the pathologist was presented with the hot spots identified with the APP on the same
whole slide images and was asked to compare his/her hot spot to the APP hot spot. The pathologist also had
access to the Ki-67 proliferation index for each hot spot as computed with the analytical biomarker APP Ki-67
APP, Breast Cancer (ID: 90004). The comparison of the hot spots could then have one out of four outcomes:
• Match (M): The pathologist hot spot and the APP hot spot match w.r.t. the location of the hot spots.
• Equivalent (E): The pathologist hot spot and the APP hot spot are equivalent w.r.t. to the Ki-67
proliferation index.
• XM – Pathologist: The pathologist hot spot and the APP hot spot are neither matching nor equivalent,
and the pathologist prefers the pathologist hot spot.
• XM – APP: The pathologist hot spot and the APP hot spot are neither matching nor equivalent, but
the pathologist prefers the APP hot spot.
The following tables and figures provide an overview of the conducted studies and the achieved results.
Table 5. Overview of clinical performance study on 34 samples conducted at Pathology Diagnostics Jarutat
with samples provided by Odense University Hospital.
Clinical site Pathology Diagnostics Jarutat, Germany
Data provided by Odense University Hospital, Denmark
Number of samples 34
Whole slide scanner Hamamatsu NanoZoomer HT 2.0 (C9600-12) at 20x
Analytical Stain Ki-67: clone 30-9, Dako
Tumor Stain
P63+CK7/19 double stain
P63: clone 4A4, Zeta
CK7: clone OV-TL12/30, Dako
CK19: clone A53-B/A2.26, Roche Ventana
Sample type Whole slide images of FFPE breast cancer resection specimens
Hot spot configuration
Object heatmap based on ratio of Ki-67 positive nuclei to total
number of nuclei. Circular hot spot with a radius of 0.45mm
and a minimum of 1000 cells within the hot spot.
Reference method Digital reading
Output method used for comparison Hot spot placement
Table 6. Agreement between pathologist hot spots and APP hot spots
Category: M E XM – Pathologist XM - APP Total in agreement Total
Quantity: 2 27 1 4 33 34
Agreement: 97.1 %
Lower 95% confidence interval (CI): 83.8 %
Hot Spot – Package Insert – 1st Edition, Revision 20181121 14
Figure 4. Proliferation index in the pathologist hot spot and APP hot spot as quantitated with the analytical
biomarker APP Ki-67 APP, Breast Cancer (ID: 90004).
Table 7. Overview of clinical performance study on 40 samples conducted at Karolinska Institutet
Clinical site Karolinska Institutet, Sweden
Number of samples 40
Whole slide scanner Hamamatsu NanoZoomer HT 2.0 (C9600-12) at 20x
Analytical Stain Ki-67: clone 30-9, Roche Ventana
Tumor Stain Cytokeratin: clone MNF 116, Dako
Sample type Whole slide images of FFPE breast cancer resection specimens
Hot spot configuration
Object heatmap based on ratio of Ki-67 positive nuclei to total
number of nuclei. Circular hot spot with a radius of 0.25mm
and a minimum of 500 cells within the hot spot.
Reference method Digital reading
Output method used for comparison Hot spot placement
Table 8. Agreement between pathologist hot spots and APP hot spots
Category: M E XM – Pathologist XM - APP Total in agreement Total
Quantity: 15 18 1 6 39 40
Agreement: 97.5 %
Lower 95% confidence interval (CI): 86.0 %
0
20
40
60
80
100
0 10 20 30P
I [%
]
Sample
Proliferation Index in Hot Spot
APP Pathologist
Hot Spot – Package Insert – 1st Edition, Revision 20181121 15
Figure 5. Proliferation index in the pathologist hot spot and APP hot spot as quantitated with the analytical
biomarker APP Ki-67 APP, Breast Cancer (ID: 90004).
Table 9. Overview of clinical performance study on 38 samples conducted at Nap Pathology Consultance,
with samples provided by University Medical Center Groningen.
Clinical site
Nap Pathology Consultance, The Netherlands
Data provided by University Medical Center Groningen, The
Netherlands
Number of samples 38
Whole slide scanner Hamamatsu S360 at 20x
Analytical Stain Ki-67: clone 30-9, Roche Ventana
Tumor Stain
P63+CK7/19 double stain
P63: clone 4A4, Roche Ventana
CK7: clone OV-TL12/30, Dako
CK19: clone A53-B/A2.26, Cell Marque
Sample type Whole slide images of FFPE breast cancer resection specimens
Hot spot configuration
Object heatmap based on count of Ki-67 positive nuclei.
Circular hot spot with a radius of 0.25mm and a minimum of
200 cells within the hot spot.
Reference method Digital reading
Output method used for comparison Hot spot placement
Table 10. Agreement between pathologist hot spots and APP hot spots
Category: M E XM – Pathologist XM - APP Total in agreement Total
Quantity: 14 18 2 4 36 38
Agreement: 94.7 %
Lower 95% confidence interval (CI): 81.8 %
0
20
40
60
80
100
0 10 20 30 40P
I [%
]
Sample
Proliferation Index in Hot Spot
APP Pathologist
Hot Spot – Package Insert – 1st Edition, Revision 20181121 16
Figure 6. Proliferation index in the pathologist hot spot and APP hot spot as quantitated with the analytical
biomarker APP Ki-67 APP, Breast Cancer (ID: 90004).
A summary of the three conducted studies can be found in the table below. The table includes the number of
samples in agreement, the percent agreement and lower 95% CI for each site as well as a total for all three
studies. Please refer to Table 11 for details.
Table 11. Overview of clinical studies
Site Samples
(n)
Samples in
agreement (n) Agreement (%) Lower 95% CI
Pathology Diagnostics Jarutat 34 33 97.1% 83.8%
Karolinska Institutet 40 39 97.5% 86.0%
Nap Pathology Consultance 38 36 94.7% 81.8%
Total 112 108 96.4% 90.9%
APP, SOFTWARE, AND PACKAGE INSERT VERSIONS
The current package insert (1st edition) is to be used as a reference when version 1.0 of the Hot Spot APP is run
on VIS ver. 2018.4 or later as outlined in Table 12.
Table 12. Relationship between APP, software and package insert versions.
APP version VIS version Package Insert version
1.0 2018.4 - 1st edition
0
20
40
60
80
100
0 10 20 30 40P
I [%
]
Sample
Proliferation Index in Hot Spot
APP Pathologist
Hot Spot – Package Insert – 1st Edition, Revision 20181121 17
TROUBLESHOOTING
Please contact Visiopharm in case of device not working as expected.
SERIOUS INCIDENTS
If any serious incident occurs in relation to the device, immediately contact Visiopharm and the competent
authority of your country.
BIBLIOGRAPHY
1. DBCG, Patologi, May 2017, URL:
http://www.dbcg.dk/PDF%20Filer/Kap_3_Patologi_22_juni_2017.pdf, Accessed 2018-07-19
2. Svensk Förening för Patologi – Svensk Förening för klinisk Cytologi, KVAST bröstcancer (2018), URL:
http://www.svfp.se/foreningar/uploads/L15178/kvast/brostpatologi/KVASTbrostcancer2018.pdf,
Accessed 2018-07-19
3. Jang, Min Hye et al., A Comparison of Ki-67 Counting Methods in Luminal Breast Cancer: The Average
Method vs. the Hot Spot Method, Ed. William B. Coleman. PLoS ONE 12.2 (2017): e0172031. PMC.
doi:10.1371/journal.pone.0172031. Accessed 2018-07-19.
TECHNICAL ADVICE AND CUSTOMER SERVICE
For all inquiries, please contact Visiopharm or your local distributor.
Visiopharm A/S
Agern Allé 24
DK-2970 Hoersholm
Denmark
Telephone: +45 88 20 20 88
Fax: +45 88 20 20 99
E-mail: [email protected]
Visiopharm Integrator System™ (VIS™) is a trademark of Visiopharm A/S.
Oncotopix® is a registered trademark of Visiopharm A/S.
VirtualDoubleStaining™ (VDS™) is a trademark of Visiopharm A/S.
US 8,229,194. Feature-based registration of sectional images
EP 2,095,332. Feature-based registration of sectional images