Related Experiment Video
Updated: Jul 11, 2026

Intravascular Perfusion of Carbon Black Ink Allows Reliable Visualization of Cerebral Vessels
Published on: January 4, 2013
Brain perfusion SPECT in a patient with a subtle venous angioma
1Department of Radiology, National Center Hospital for Mental, Nervous, and Muscular Disorders, Tokyo, Japan.
Abstract:
Brain SPECT of regional cerebral blood flow using I-123 IMP demonstrated a focally decreased perfusion area immediately adjacent to a venous angioma in a patient with simple partial seizures. A positive correlation was obtained among the location of the venous angioma, the decreased perfusion area on SPECT images, and the electroencephalographic focus. Anomalous venous drainage through a venous angioma may explain a perfusion disturbance in the surrounding brain of the angioma. High-resolution SPECT imaging with magnetic resonance guidance provides useful information on the pathophysiology of venous angiomas.
Related Concept Videos
Assessment of Diffusion and Perfusion
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

