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Multidetector CT urography in imaging of the urinary tract in patients with hematuria.

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

Bottom Line: This review article comprehensively discusses multidetector CT urography protocols and their role in imaging of the urinary tract in patients with hematuria.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.

ABSTRACT
This review article comprehensively discusses multidetector CT urography protocols and their role in imaging of the urinary tract in patients with hematuria.

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Related in: MedlinePlus

Multidetector CT urography study in a 52-year-old lady hematuria demonstrating renal cell carcinoma. Unenhanced image (A) demonstrates right renal mass with calcification. Contrast-enhanced images demonstrate a hypervascular enhancing mass (B).
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Figure 5: Multidetector CT urography study in a 52-year-old lady hematuria demonstrating renal cell carcinoma. Unenhanced image (A) demonstrates right renal mass with calcification. Contrast-enhanced images demonstrate a hypervascular enhancing mass (B).

Mentions: The CT characteristics of a simple renal cyst requires confirmation of water density throughout the lesion, sharply defined margins with no discernible wall and unequivocal absence of contrast enhancement. The Bosniak system was described in an effort to facilitate the distinction of benign cystic lesions and cystic neoplasms, and to guide the management of cystic renal masses (Fig. 5) (29). Pseudoenhancement has been described as a factor, which resulted in cystic lesions being wrongly categorized as solid lesions. Recent phantom studies have suggested that pseudoenhancement is a greater problem with small lesions and is more commonly seen with helical and multidetector helical CT scans (30). The use of thin section acquisition combined with thinner reformatting can reduce (15, 31) the impact of volume averaging and allows more accurate Hounsfield values to be calculated, thus reducing the likelihood of pseudoenhancement.


Multidetector CT urography in imaging of the urinary tract in patients with hematuria.

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

Multidetector CT urography study in a 52-year-old lady hematuria demonstrating renal cell carcinoma. Unenhanced image (A) demonstrates right renal mass with calcification. Contrast-enhanced images demonstrate a hypervascular enhancing mass (B).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2698107&req=5

Figure 5: Multidetector CT urography study in a 52-year-old lady hematuria demonstrating renal cell carcinoma. Unenhanced image (A) demonstrates right renal mass with calcification. Contrast-enhanced images demonstrate a hypervascular enhancing mass (B).
Mentions: The CT characteristics of a simple renal cyst requires confirmation of water density throughout the lesion, sharply defined margins with no discernible wall and unequivocal absence of contrast enhancement. The Bosniak system was described in an effort to facilitate the distinction of benign cystic lesions and cystic neoplasms, and to guide the management of cystic renal masses (Fig. 5) (29). Pseudoenhancement has been described as a factor, which resulted in cystic lesions being wrongly categorized as solid lesions. Recent phantom studies have suggested that pseudoenhancement is a greater problem with small lesions and is more commonly seen with helical and multidetector helical CT scans (30). The use of thin section acquisition combined with thinner reformatting can reduce (15, 31) the impact of volume averaging and allows more accurate Hounsfield values to be calculated, thus reducing the likelihood of pseudoenhancement.

Bottom Line: This review article comprehensively discusses multidetector CT urography protocols and their role in imaging of the urinary tract in patients with hematuria.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.

ABSTRACT
This review article comprehensively discusses multidetector CT urography protocols and their role in imaging of the urinary tract in patients with hematuria.

Show MeSH
Related in: MedlinePlus