3D STRESS ECHOCARDIOGRAPHY - European Society...
Transcript of 3D STRESS ECHOCARDIOGRAPHY - European Society...
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3D STRESS ECHOCARDIOGRAPHY
Luigi P. Badano**, MD, FESC
Clinica Cardiologica
Università degli Studi di Padova
Direttore: Prof. Sabino Iliceto
**Dr. Badano has received honoraries and research grants from GE
Healthcare, Sorin cardio S.p.A., Actelion, Edwards Lifesciences
*No off-label use of device
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DIAGNOSTIC ACCURACY OF STRESS ECHO
ExEcho DbEcho DypEcho ExEcho DbEcho DypEcho
Highest 97 95 81 86 95 94
Lowest 74 61 61 64 51 90
Mean 88 81 77 79 80 92
SENSITIVITY SPECIFICITY
Marwick TH. Heart 2003
100
80
60
40
20
0
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STRESS-ECHOLimitations of current 2D Imaging for stress echo
• Time required for image acquisition (potential missing of ischemia)• Operator-dependent image acquisition• Difficult to precisely match myocardial segments between baseline and stress (over- or under-estimation of ischemia)• Quad screen display does not encompass the entire left ventricle (risk of missing stress-induced wall motion abnormalities)
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STRESS-ECHOLimitations of current 2D Imaging for stress echo
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REAL-TIME 4D STRESS-ECHO
The Time Saver
4D Echo (multislice)
Multiplane
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4D STRESS-ECHOLimitations of Previous 3D Imaging for Stress-echo
• Limited time resolution• Reduced image quality vs 2D• Analysis time prolonged by manual cropping the full-volume data-sets• Impossibility to side-by-side display of cropped images
Varnero S et al. Cardiovasc Ultrasound 2008
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STRESS-ECHOLimitations of Previous 3D Imaging for Stress-echo
Varnero S et al. Cardiovasc Ultrasound 2008
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4D DIPYRIDAMOLE STRESS-ECHO
(4D DSE)
Aminophylline
0 8
Dipyridamole (mg/Kg)
Time (min)
0.84
6
Baseline Peak Recovery
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Variables n= 107 pts
Males 67 (63%)
Age (yrs) 68±13
Hypertension 52 (49%)
Smokers 73 (68%)
Diabetes 25 (23%)
Hypecholesterolemia 46 (43%)
Clinical Indication
Non cardiac surgery pre-op assessment 63 (59%)
Angina pectoris (unable to exercise) 44 (41%)
Previous CAD
Myocardial infarction 25 (23%)
Previous PCI 13 (12%)
Previous CABG 8 (8%)
Medical therapy Withdrawn
Study Population (December 2008 - January 2010)
4D DIPYRIDAMOLE STRESS ECHO
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4D DIPYRIDAMOLE STRESS-ECHO
The challenge2D Acquisition 4D Acquisition
Vs.
Acquisition Time = 65±30 s
Analysis Time= 176±63 s
Temporal resolution= 75±5 fps
Acquisition Time = 16±3 s (p<0.0001)
Analysis Time= 91±5 s (p<0.0001)
Temporal resolution= 41±5 vps (p<0.0001)
Badano LP, Muraru D et al. J Am Soc Echocardiogr 2010
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4D DIPYRIDAMOLE STRESS-ECHOImage Acquisition
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4D DIPYRIDAMOLE STRESS-ECHO2D Image Analysis
Baseline Stress-echo
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4D DIPYRIDAMOLE STRESS-ECHO
Baseline 4D Image Analysis
9 slices 12 slices
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2D 4D
4D DIPYRIDAMOLE STRESS-ECHO
Stress-Echo 4D Image Analysis (4CH-view)
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4D DIPYRIDAMOLE STRESS-ECHO
Stress-Echo 4D Image Analysis (2CH view)
2D 4D
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4D DIPYRIDAMOLE STRESS-ECHO
Stress-Echo 4D Image Analysis (ApLAX view)
2D 4D
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4D DIPYRIDAMOLE STRESS-ECHO
Stress-Echo 4D Image Analysis (SAX Basal)
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4D DIPYRIDAMOLE STRESS-ECHO
Stress-Echo 4D Image Analysis (Sax Mid)
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4D DIPYRIDAMOLE STRESS-ECHO
Stress-Echo 4D Image Analysis (SAX Apex)
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Variables n= 107 pts
Adequate 4D imaging 84 (79%)
Reasons for test termination
End of the protocol 46 (55%)
New or worsening wall motion 38 (45%)
LV segments available for analysis 1428 x 2
Uninterpretable segments at 2DE 311
Baseline 197 (14%)
Peak stress 114 (8%)
Unininterpretable segments at 4DE 213 (p<0.001 vs 2DE)
Baseline 127(9%) (p<0.03 vs 2DE)
Peak stress 81 (6%)
Badano LP, Muraru D et al. J Am Soc Echocardiogr 2010
4D DIPYRIDAMOLE STRESS ECHO
Results
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4D DIPYRIDAMOLE STRESS-ECHO
0
10
20
30
40
50
60
70
80
90
100
Apical Anteroseptal Inferior Ant.-lateral
3D Bas
2D Bas
3D Pk
2D Pk
Su
cces
s R
ate
of
Ad
equ
ate
Im
ag
e A
cqu
isis
tio
n (
%)
p=0.02 p=0.03 p=1.00 p=0.51 p=1.00 p=1.00 p=1.00 p=0.29
Badano LP, Muraru D et al. J Am Soc Echocardiogr 2010
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4D DIPYRIDAMOLE STRESS-ECHO
Results
WMSI 2DE 3DE p Value
Baseline 1.041±0.015 1.049±0.01 NS
Peak stress 1.21±0.025 1.29±0.0253 0.011
Apical 1.34±0.057 1.55±0.078 <0.0001
k= 0.71 k= 0.73
Badano LP, Muraru D et al. J Am Soc Echocardiogr 2010
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Sensitivity (%) Specificity (%)
RT3DE 2DE p RT3DE 2DE p
All territories 80 78 NS 87 91 NS
LAD territory 87 78 0.02 90 93 NS
RCA territory 82 77 NS 85 88 NS
LCX territory 65 63 NS 94 92 NS
Coronary angiography 35 pts.
1 vessel disease 9
2 vessel disease 17
3 vessel disease 9
Badano LP, Muraru D et al. J Am Soc Echocardiogr 2010
4D DIPYRIDAMOLE STRESS ECHO
Results
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Variables n= 107 pts
Adequate 4D Imaging 84 (79%)
Reasons for test termination
End of the protocol 46 (55%)
New or worsening wall motion 38 (45%)
LV segments available for analysis 1428 x 2
Uninterpetable segments at 2DE 311
Baseline 197 (14%)
Peak stress 114 (8%)
Unininterpretable segments at 4DE 213 (p<0.001 vs 2DE)
Baseline 127 (9%) (p<0.03 vs 2DE)
Peak stress 81 (6%)
4D DIPYRIDAMOLE STRESS-ECHO
Results
Badano LP, Muraru D et al. J Am Soc Echocardiogr 2010
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4D DIPYRIDAMOLE STRESS-ECHO Conclusions
PROS:
- Simultaneous acquisition of all views;
- Quick (around 30 s);
- Comprehensive assessment of the whole LV
(long. and circumf. extension of ischemia) ;
- Precise anatomically correct tomographic LV
sections;
- No foreshortening of the apex;
- Reduced operator skill needed for acquisition
- Image quality competing with 2D
- Cost/effectiveness
CONS:
-(Temporal resolution (41 vps))
- Atrial fibrillation
- Nearly real time
- (Visual assessment only)
-No contrastFeasibility 78%
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