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Techniques, clinical applications and limitations of 3D reconstruction in CT of the abdomen.

Maher MM, Kalra MK, Sahani DV, Perumpillichira JJ, Rizzo S, Saini S, Mueller PR - Korean J Radiol (2004 Jan-Mar)

Bottom Line: This pictorial essay describes the improvements in 3D reconstruction and technical aspects of 3D reconstruction and rendering techniques available for abdominal imaging.Clinical applications of 3D imaging in abdomen including liver, pancreaticobiliary system, urinary and gastrointestinal tracts and imaging before and after transplantation are discussed.In addition, this article briefly discusses the disadvantages of thin-slice acquisitions including increasing numbers of transverse images, which must be reviewed by the radiologist.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston 02184, USA. mmaher@partners.org

ABSTRACT
Enhanced z-axis coverage with thin overlapping slices in breath-hold acquisitions with multidetector CT (MDCT) has considerably enhanced the quality of multiplanar 3D reconstruction. This pictorial essay describes the improvements in 3D reconstruction and technical aspects of 3D reconstruction and rendering techniques available for abdominal imaging. Clinical applications of 3D imaging in abdomen including liver, pancreaticobiliary system, urinary and gastrointestinal tracts and imaging before and after transplantation are discussed. In addition, this article briefly discusses the disadvantages of thin-slice acquisitions including increasing numbers of transverse images, which must be reviewed by the radiologist.

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3D CT of malignant colonic stricture in a 73-year-old man. Axial CT (A) and coronal multiplanar reconstruction (B) images show circumferential short segment thickening of the sigmoid colon (arrow) suggestive of colon cancer. 3D CT colonography (C) as a "double-contrast barium enema" simulating image, reveals short segment "apple-core" lesion (arrow) in the sigmoid colon.
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Figure 15: 3D CT of malignant colonic stricture in a 73-year-old man. Axial CT (A) and coronal multiplanar reconstruction (B) images show circumferential short segment thickening of the sigmoid colon (arrow) suggestive of colon cancer. 3D CT colonography (C) as a "double-contrast barium enema" simulating image, reveals short segment "apple-core" lesion (arrow) in the sigmoid colon.

Mentions: The utilization of 3D reconstruction is reserved for problem solving in gastrointestinal pathology. Coronal, sagittal and oblique reconstructions can aid in identifying precise anatomic location of stomach, small bowel and colonic lesions (Fig. 15).


Techniques, clinical applications and limitations of 3D reconstruction in CT of the abdomen.

Maher MM, Kalra MK, Sahani DV, Perumpillichira JJ, Rizzo S, Saini S, Mueller PR - Korean J Radiol (2004 Jan-Mar)

3D CT of malignant colonic stricture in a 73-year-old man. Axial CT (A) and coronal multiplanar reconstruction (B) images show circumferential short segment thickening of the sigmoid colon (arrow) suggestive of colon cancer. 3D CT colonography (C) as a "double-contrast barium enema" simulating image, reveals short segment "apple-core" lesion (arrow) in the sigmoid colon.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2698114&req=5

Figure 15: 3D CT of malignant colonic stricture in a 73-year-old man. Axial CT (A) and coronal multiplanar reconstruction (B) images show circumferential short segment thickening of the sigmoid colon (arrow) suggestive of colon cancer. 3D CT colonography (C) as a "double-contrast barium enema" simulating image, reveals short segment "apple-core" lesion (arrow) in the sigmoid colon.
Mentions: The utilization of 3D reconstruction is reserved for problem solving in gastrointestinal pathology. Coronal, sagittal and oblique reconstructions can aid in identifying precise anatomic location of stomach, small bowel and colonic lesions (Fig. 15).

Bottom Line: This pictorial essay describes the improvements in 3D reconstruction and technical aspects of 3D reconstruction and rendering techniques available for abdominal imaging.Clinical applications of 3D imaging in abdomen including liver, pancreaticobiliary system, urinary and gastrointestinal tracts and imaging before and after transplantation are discussed.In addition, this article briefly discusses the disadvantages of thin-slice acquisitions including increasing numbers of transverse images, which must be reviewed by the radiologist.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston 02184, USA. mmaher@partners.org

ABSTRACT
Enhanced z-axis coverage with thin overlapping slices in breath-hold acquisitions with multidetector CT (MDCT) has considerably enhanced the quality of multiplanar 3D reconstruction. This pictorial essay describes the improvements in 3D reconstruction and technical aspects of 3D reconstruction and rendering techniques available for abdominal imaging. Clinical applications of 3D imaging in abdomen including liver, pancreaticobiliary system, urinary and gastrointestinal tracts and imaging before and after transplantation are discussed. In addition, this article briefly discusses the disadvantages of thin-slice acquisitions including increasing numbers of transverse images, which must be reviewed by the radiologist.

Show MeSH
Related in: MedlinePlus