Pictorial review of colonic polyp and mass distortion and recognition with the CT virtual dissection technique

Radiographics : a Review Publication of the Radiological Society of North America, Inc
Kevin N ChristensenC Daniel Johnson

Abstract

Virtual dissection is a three-dimensional (3D) display technique for CT colonography that could potentially reduce interpretation times. With virtual dissection, the 3D model of the colon is "sliced" open along a centerline trace, rendering a 360° view of the endoluminal mucosa as a rectangular image. However, one must be familiar with several pitfalls and limitations to avoid errors in interpretation. One of the main limitations is the anatomic distortion that results. Polyp shape and colonic folds can be distorted and colonic or polyp mobility can lead to mischaracterization of polyps. Distorted folds, which frequently occur at flexures, can mimic polyps. Annular constricting masses can lead to skip areas, where the abnormality is not displayed. Various entities including diverticula and stool can mimic polyps at virtual dissection. Finally, technical errors such as an inadequate centerline trace can render a polyp occult. The purpose of this review is to demonstrate the spectrum of appearances of polyps at virtual dissection, with an emphasis on more difficult to detect polyps. In addition, 10 interactive virtual dissection quiz cases are presented along with corresponding two-dimensional and 3D endoluminal fly-through views.

References

Feb 7, 2001·Journal of Computer Assisted Tomography·D S PaikS Napel
Jan 3, 2001·AJR. American Journal of Roentgenology·M Macari, A J Megibow
Dec 6, 2003·The New England Journal of Medicine·Perry J PickhardtWilliam R Schindler
Feb 27, 2004·European Radiology·John F BruzziHelen M Fenlon
Jun 26, 2004·Academic Radiology·Jeff L FidlerBrian J Bartholmai
Dec 17, 2005·AJR. American Journal of Roentgenology·Kristina T JohnsonRonald L Summers
Nov 15, 2006·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Alvin C SilvaAmy K Hara
Jan 17, 2007·European Journal of Radiology·Thomas MangAndrea Maier
May 16, 2007·Radiologic Clinics of North America·Abraham H DachmanMartina Morin
Aug 4, 2007·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Seong Ho ParkYoung Hoon Kim
Nov 22, 2007·AJR. American Journal of Roentgenology·Perry J PickhardtDavid H Kim
Sep 19, 2008·The New England Journal of Medicine·C Daniel JohnsonPaul J Limburg

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Citations

Apr 28, 2012·Abdominal Imaging·Perry J Pickhardt
Jun 14, 2012·Birth Defects Research. Part C, Embryo Today : Reviews·Wolfgang J Weninger, Stefan H Geyer
Oct 24, 2012·European Journal of Radiology·Emanuele NeriCarlo Bartolozzi
Nov 28, 2012·Radiologic Clinics of North America·Perry J Pickhardt, David H Kim
Feb 7, 2018·Abdominal Radiology·Seong Ho Park, David H Kim
May 17, 2018·Digestive Diseases and Sciences·William M Grady, Ming Yu
Apr 17, 2021·Seminars in Roentgenology·Zina J RicciJudy Yee

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