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DOI: 10.1148/rg.265055208
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RadioGraphics 2006;26:1335-1353
© RSNA, 2006

EDUCATION EXHIBIT

Pearls and Pitfalls in Interpretation of Abdominal and Pelvic PET-CT1

Michael A. Blake, FFR (RCSI), FRCR, Ajay Singh, MD, Bindu N. Setty, MD, James Slattery, FFR (RCSI), Mannudeep Kalra, MD, Michael M. Maher, MD, Dushyant V. Sahani, MD, Alan J. Fischman, MD and Peter R. Mueller, MD

1 From the Department of Radiology, Division of Abdominal Imaging and Intervention (M.A.B., A.S., B.N.S., J.S., M.K., M.M.M., D.V.S., P.R.M.) and Division of Nuclear Medicine (A.J.F.), Massachusetts General Hospital, White 270, 55 Fruit St, Boston MA 02114. Recipient of an Excellence in Design award for an education exhibit at the 2004 RSNA Annual Meeting. Received December 8, 2005; revision requested January 4, 2006 and received February 1; accepted February 6. All authors have no financial relationships to disclose. Address correspondence to B.N.S. (e-mail: bsetty{at}partners.org).

The interpretation of images obtained in the abdomen and pelvis can be challenging, and the coregistration of positron emission tomographic (PET) and computed tomographic (CT) scans may be especially valuable in the evaluation of these anatomic areas. PET-CT represents a major technologic advance, consisting of generally complementary modalities whose combined strength tends to overcome their respective weaknesses. However, this combined functional-structural imaging approach raises a number of controversial questions and presents some unique interpretative challenges. Accurate PET-CT scan interpretation requires awareness of the various pitfalls associated with the imaging components, both individually and in combination. The results of recent PET-CT studies have been very encouraging, but larger prospective studies will be needed to establish optimal hybrid scanning protocols. Applying sound imaging principles, paying attention to detail, and staying abreast of advances in this exciting new modality are necessary for harnessing the full diagnostic power of abdominopelvic PET-CT.

© RSNA, 2006






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