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| | Magnetic Resonance, MRI, MRA, MRV, 106 |
 | | Sensitivity may be lower with smaller caliber vessels: anterior and posterior communicating: 60-95%; anterior inferior cerebellar artery: 52%; posterior inferior cerebellar artery 89%. |
 | | Sensitivity is usually reported in the 97-100% range, though may be lower in smaller caliber veins, such as those in the shoulder area (83%). |
 | | US exams of the central chest veins is limited by bones, and venous compression is rarely possible. |
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