Ramin Mandegaran MBBS, Presenter: Nothing to Disclose

Kanhaiyalal Agrawal MBBS, MD, Abstract Co-Author: Nothing to Disclose

Christopher Sibley-Allen MSc, Abstract Co-Author: Nothing to Disclose

Dhruba Dasgupta MRCP, FRCR, Abstract Co-Author: Nothing to Disclose

Gopinath Gnanasegaran MD, Abstract Co-Author: Nothing to Disclose

Purpose: 1. To review basic principles and protocols of 99mTc-MAA & 81mKr V/Q SPECT & SPECT/CT. 2. To review current literature on V/Q SPECT & SPECT/CT. 3. To illustrate clinical examples, normal variants, artefacts.    Summary – Major Teaching Points: 1. V/Q SPECT imaging improves diagnostic accuracy in patients suspected with pulmonary embolism. 2. Normal variants and artefacts should be taken into consideration whilst reporting a SPECT or SPECT/CT V/Q scan. 3. V/Q SPECT/CT imaging improves the diagnostic accuracy in patients with equivocal findings on SPECT.  

Content Organisation: Illustrated review of the imaging appearances on V/Q SPECT & SPECT/CT (a) Normal and Abnormal scans (V/Q matched defects, mismatch defects and reverse mismatch defects) (b) Normal variants (fissures, vessels etc) and artefacts with CT correlation (c) Incidental & interesting findings on CT (d) Miscellaneous artefacts/false positives (e) Non-PE indications of V/Q SPECT & SPECT/CT  

http://abstract.rsna.org/uploads/2014/14003075/14003075_vll5.pdf

Mandegaran, R, Agrawal, K, Sibley-Allen, C, Dasgupta, D, Gnanasegaran, G, Radionuclide Ventilation and Perfusion SPECT & SPECT/CT Imaging: Patterns, Variants & Artefacts.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003075.html