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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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Related in: MedlinePlus

Virtual cystoscopy is useful in evaluation of bladder tumors.Axial (A) and virtual cystoscopy (B) images in a 67-year-old man demonstrate bladder wall thickening and irregularity (arrow). Virtual cystoscopy depicts the surface of the bladder mucosa and shows the size and site of the bladder neoplasm (arrow).
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Figure 14: Virtual cystoscopy is useful in evaluation of bladder tumors.Axial (A) and virtual cystoscopy (B) images in a 67-year-old man demonstrate bladder wall thickening and irregularity (arrow). Virtual cystoscopy depicts the surface of the bladder mucosa and shows the size and site of the bladder neoplasm (arrow).

Mentions: Virtual CT cystoscopy evolved with CT colonography as a means of evaluating the bladder mucosa although it is much less widely utilized in clinical practice (Fig. 14). The additional information acquired at virtual CT cystoscopy can potentially aid in the planning of cytoscopy and cystoscopic resection of bladder tumors (13, 14). For polypoidal tumors, reports in the literature have suggested that virtual endoscopy of urinary bladder has equivalent accuracy to conventional cystoscopy, and may be very useful in the follow-up of patients following cytoscopic resection or other local treatments of bladder tumors thus reducing the costs and morbidity associated with conventional cytoscopy (13, 14). Virtual cystoscopy is particularly advantageous to patients in whom conventional cystoscopy is impossible due to urethral stricture.


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)

Virtual cystoscopy is useful in evaluation of bladder tumors.Axial (A) and virtual cystoscopy (B) images in a 67-year-old man demonstrate bladder wall thickening and irregularity (arrow). Virtual cystoscopy depicts the surface of the bladder mucosa and shows the size and site of the bladder neoplasm (arrow).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 14: Virtual cystoscopy is useful in evaluation of bladder tumors.Axial (A) and virtual cystoscopy (B) images in a 67-year-old man demonstrate bladder wall thickening and irregularity (arrow). Virtual cystoscopy depicts the surface of the bladder mucosa and shows the size and site of the bladder neoplasm (arrow).
Mentions: Virtual CT cystoscopy evolved with CT colonography as a means of evaluating the bladder mucosa although it is much less widely utilized in clinical practice (Fig. 14). The additional information acquired at virtual CT cystoscopy can potentially aid in the planning of cytoscopy and cystoscopic resection of bladder tumors (13, 14). For polypoidal tumors, reports in the literature have suggested that virtual endoscopy of urinary bladder has equivalent accuracy to conventional cystoscopy, and may be very useful in the follow-up of patients following cytoscopic resection or other local treatments of bladder tumors thus reducing the costs and morbidity associated with conventional cytoscopy (13, 14). Virtual cystoscopy is particularly advantageous to patients in whom conventional cystoscopy is impossible due to urethral stricture.

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