CEUS for Renal Masses & Perfusion

CEUS for Renal Masses & Perfusion 0%

1. Introduction to Renal CEUS

Role of CEUS in Renal Imaging
Safety and Non-nephrotoxic Nature of Microbubble Contrast
Indications: Renal Mass Characterization, Infarcts, Perfusion Defects

2. CEUS Protocol for Kidney

Contrast Agent (e.g., SonoVue, Lumason)
Patient Prep and Injection Timing
CEUS Phases: Corticomedullary (10–30 sec), Nephrographic (30–120 sec), Late Phase (>120 sec)
Use of Dual Imaging Mode (B-mode + Contrast)

3. Renal Mass Evaluation

Cystic Lesions: Bosniak Classification with CEUS
Simple vs Complex Cysts
Solid Renal Masses (RCC, Oncocytoma, Angiomyolipoma)
Enhancement Patterns and Washout in Malignancy

4. CEUS in Renal Perfusion

Renal Infarction: Wedge-shaped Non-enhancement
Acute Cortical Necrosis
Pyelonephritis and Focal Nephritis
Transplant Kidney Perfusion Assessment

5. Comparison with CT/MRI

CEUS vs CT in Cystic Lesion Classification
CEUS in Patients with Renal Insufficiency
Role in Lesions Indeterminate on CT
CEUS as Follow-up Modality Post-Biopsy/Ablation

6. Pitfalls and Limitations

Pseudo-enhancement in Deep Lesions
Artifacts and Motion Sensitivity
Small Cortical Lesions May Be Missed
Differentiation Between RCC Subtypes Remains Limited

7. CEUS in Renal Intervention

Guidance for Biopsy of Indeterminate Masses
Assessment of Post-ablation Viability
Follow-up for Treated Tumors
Monitoring Transplant Complications

8. Case Studies and Quiz Section

CEUS in Complex Renal Cysts (Bosniak IIF–IV)
Differentiation of RCC vs AML
Real-Time CEUS Flow Interpretation
MCQs and Image-Based Diagnostic Challenges