NOVEL AND STANDARD IMAGING TECHNIQUES: RADIOGRAPHS, … · Oncologic complications...
Transcript of NOVEL AND STANDARD IMAGING TECHNIQUES: RADIOGRAPHS, … · Oncologic complications...
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NOVEL AND STANDARD IMAGING TECHNIQUES: RADIOGRAPHS, CT, & PET
FLASCO 2019
Sushil Sonavane, MD
Senior associate consultant
Mayo Clinic
Jacksonville FL
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Disclosure
• No relevant financial disclosures
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Introduction
Radiology imaging studies form a pivotal role in diagnosis,
staging, monitoring treatment, detect anatomic complications
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Oncologic complications
• Direct/Structural
–Invasion or compression or adjacent structures
• Indirect-
–Immunocompromised status
–Hypercoagulability
–Paraneoplastic syndromes
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Imaging Modalities
• Plain radiography: X-ray
• CT: X-ray
• Ultrasound: Sound waves
• MR: Magnetic field
• PET-CT: Radioisotope
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Chest PA & Lateral
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Standard Vs Portable Radiography
http://www.chd-uk.co.uk/types-of-chd-and-operations/non-invasive-tests/
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Standard Vs Portable Radiography
http://www.flickr.com/photos/beckerbuns/2320521490/in/photostream/lightbox/
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Standard Vs Portable Radiography
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Opacity versus lucency
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69-year-man, chronic smoker, presented with cough and fever
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65-year-man, smoker for 25 years, chronic dry cough since 4 months
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Chest- Dual energy
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Non-contrast versus Contrast
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Contrast media
• Intravenous
• Oral
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• Luminal details of the bowel
• Obstruction
• Perforation
Role of Oral contrast study
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Role of IV contrast study
• Heart and Blood vessels
• Solid organs
• Lymph nodes
• Tumor characteristic- solid versus necrotic
• Tumor invasion
• Fluid collection versus abscess
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Soft tissue Bone
Lung
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Contraindications for intravenous contrast
• Renal failure:
– Serum creatinine
– eGFR <30
• Contrast reaction:
– Mild: hives, rash, itching
• Premeditation- steroid, antihistaminic
– Severe: Anaphylaxis, angioedema, stridor
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Contrast Induced Nephropathy
Increase in Serum creatinine (SCr)
• 25% relative increase, or
• 0.5 mg/dL (44 µmol/L) absolute increase,
• within 72 h of contrast exposure,
• in the absence of an alternative explanation
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MR
• Better soft tissue characterization
• Longer study
• No radiation
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MR contrastGadolinium Based
Risk of NSF among patients exposed to standard or lower than standard doses of group II GBCAs is sufficiently low or possibly nonexistent such that assessment of renal function with a questionnaire or laboratory testing is optional prior to intravenous administration.
ACR Contrast Manual Version 10.3 (2018)
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H/O Breast cancer, now presented with altered mental status
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Lung Ca
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• Abdomen:– Intestinal obstruction– Hemorrhage– Urinary tract obstruction
• Chest:– Pleural effusion– Pericardial effusion– SVC syndrome
• CNS:– Spinal cord compression– Herniation
Oncologic Emergencies
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Pneumonia
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52-year man undergoing chemotherapy for lymphoma. Presents with lethargy and fever
Angio-invasive aspergillosis
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Pleural effusion
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Pneumothorax
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Cavitation
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Pericardial effusion
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70-year-man with weight loss and increasing swelling over neck and upper extremities
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Post Radiation Fibrosis
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61-year man with stage 1 lung cancer
3 months s/p SBRT
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Esophageal Cancer- Perforation
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Iatrogenic- Lines/PortsMalposition
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Iatrogenic- Lines/Portsmalposition
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Iatrogenic- Lines/PortsThrombus
Case 1 Case 2
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Abdomen AP radiograph
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Intestinal obstruction
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Distal small bowel obstruction
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Hemorrhage
Non-contrast Contrast
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Ultrasound
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Urinary tract obstruction
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Urinary tract obstruction
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Lower Extremity Doppler
Normal Left femoral vein
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Lower Extremity Doppler
Acute DVT Right femoral vein
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Spinal cord compression
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Cerebral herniation
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64-year-man with h/o left nephrectomy for renal cell carcinoma
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Summary
Radiology imaging studies form a pivotal role in diagnosis,
staging, monitoring treatment, detect anatomic complications
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Thank youEmail: [email protected]