Nanjundiah Vishwanath MBBS, Presenter: Nothing to Disclose

Tufail F.M. Patankar MD, Abstract Co-Author: Nothing to Disclose

Nigel Hoggard MBCHB, Abstract Co-Author: Nothing to Disclose

Roger Laitt MBBCH, Abstract Co-Author: Nothing to Disclose

David Hughes MBBCH, Abstract Co-Author: Nothing to Disclose

Amit Herwadkar MBBS, Abstract Co-Author: Nothing to Disclose

Mamatha Vishwanath MBBS, Abstract Co-Author: Nothing to Disclose

et al, Abstract Co-Author: Nothing to Disclose

1.To review the normal anatomy and normal variants with respect to CTV. 2.To review the technique and demonstrate the limitations & pitfalls of CTV. 3.To discuss the role of CTV in various pathologies & to describe their imaging appearances.

CTV is often used to investigate intracranial venous thrombosis. In our study patients were scanned from base of the skull to the vertex after infusing pump injection of iohexol. Source images, MIP images, 3D & multiplanar reconstructions were used for interpretation. Limitations include lack of detailed information of flow dynamics, artefacts & radiation. Precise knowledge of normal anatomy & variations is important for accurate interpretation. A spectrum of anatomy, variations and pathology has been reviewed. We have reviewed normal anatomy of dural venous sinuses, superficial & deep venous systems & normal variations in venous drainage which mimic pathology. Pathology cases include venous sinus thrombosis, cerebral venous thrombosis, dural sinus fistulas, sinus pericranii, arterio-venous malformations & deep venous anomalies. We demonstrate cases where CTV has been useful in surgical planning for tumor resection. This exhibit will be a learning tool to understand CTV.

Vishwanath, N, Patankar, T, Hoggard, N, Laitt, R, Hughes, D, Herwadkar, A, Vishwanath, M, et al, , CT Venography of the Brain: Pictorial Review of the Anatomy, Technique, and Pathology.  Radiological Society of North America 2005 Scientific Assembly and Annual Meeting, November 27 - December 2, 2005 ,Chicago IL. http://archive.rsna.org/2005/4417893.html