Advanced MR Venogram (MRV) Studies at Madras Scans & Labs

Madras Scans & Labs offers cutting-edge 3T MR Venography using the latest Siemens/GE scanners for unparalleled venous system evaluation. Our specialized protocols provide superior visualization of venous structures with exceptional detail.

Key MRV Examinations:

1. Neurovenous Imaging:

   • Cerebral venous sinus thrombosis detection

   • Dural AV fistula evaluation

   • Vein of Galen malformation assessment

   • Pre-surgical venous mapping for epilepsy cases

2. Body Venography:

   • Portal venous system assessment (with MR portography)

   • Renal vein evaluation (for tumor thrombus)

   • Pelvic congestion syndrome workup

   • IVC filter assessment and planning

3. Extremity Venography:

   • Upper extremity venous thoracic outlet syndrome

   • Lower extremity May-Thurner syndrome evaluation

   • Chronic venous insufficiency mapping

Advanced MRV Techniques Available:
✓ 4D Time-Resolved MR Angio-Venography - Dynamic blood flow analysis
✓ SWI Venography - For microvenous abnormalities
✓ Non-contrast 3D PC-VEN - For patients with renal impairment
✓ Cine PC MRV - For CSF/venous flow dynamics

Clinical Advantages:

• 10x higher resolution than conventional venography

• Zero radiation exposure - Safe for pediatric and pregnant patients

• Quantitative flow analysis included in reports

• Multiplanar 3D reconstructions for surgical planning

Specialized Protocols:

• MR Direct Thrombus Imaging - Characterizes thrombus age

• Valsalva maneuver sequences - For dynamic venous compression

• Contrast-enhanced MRV with blood pool agents (when indicated)

Why Choose Our MRV Services?
• Dedicated vascular imaging radiologists
• Same-day emergency slots for stroke/TVT cases
• Comparative analysis with previous studies
• Quantitative venous hemodynamics reporting

Scan Duration: 25-45 minutes (protocol dependent)
Preparation: Fasting not required for non-contrast studies

Ideal for:

• Unexplained intracranial hypertension

• Chronic cerebrospinal venous insufficiency (CCSVI) evaluation

• Pre-operative venous mapping

• Unexplained peripheral edema

For complex cases, we offer combined MRA+MRV protocols with dual-phase contrast imaging.

Would you like information on our specialized pediatric venous imaging protocols or research collaboration opportunities?