Gadolinium-enhanced fat-suppressed T1-weighted imaging for staging ureteral carcinoma: correlation with histopathology.

Masao Obuchi; Kousei Ishigami; Koji Takahashi; Minoru Honda; Toshiyuki Mitsuya; David M. Kuehn; Alan H. Stolpen; Bruce P. Brown; Akihiro Nishie

doi:10.2214/AJR.05.0172

Gadolinium-enhanced fat-suppressed T1-weighted imaging for staging ureteral carcinoma: correlation with histopathology.

Masao Obuchi, Kousei Ishigami, Koji Takahashi, Minoru Honda, Toshiyuki Mitsuya, David M. Kuehn, Alan H. Stolpen, Bruce P. Brown, Akihiro Nishie

Internal Medicine

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

OBJECTIVE: The purpose of this study was to retrospectively compare contrast-enhanced fat-suppressed T1-weighted images with histopathologic findings in ureteral carcinoma to develop accurate preoperative MR criteria for T staging. CONCLUSION: Contrast-enhanced fat-suppressed T1-weighted images can be used to distinguish thickened noncarcinomatous ureteral walls, which occur due to the proliferation of fibrous tissue, from ureteral carcinoma because fibrous tissue enhances more intensely on MRI than ureteral carcinoma. We also observed that when ureteral carcinomas had invaded periureteral fat tissue, a disruption or fragmentation of the intensely enhancing ureteral wall was seen. Using the MR criteria for T staging that we developed on the basis of these findings, we were able to accurately determine whether a carcinoma had invaded periureteral fat tissue in all of our patients.

Original language	English
Pages (from-to)	W256-261
Journal	AJR. American journal of roentgenology
Volume	188
Issue number	3
DOIs	https://doi.org/10.2214/AJR.05.0172
Publication status	Published - Mar 2007

All Science Journal Classification (ASJC) codes

Radiology Nuclear Medicine and imaging

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10.2214/AJR.05.0172

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title = "Gadolinium-enhanced fat-suppressed T1-weighted imaging for staging ureteral carcinoma: correlation with histopathology.",

abstract = "OBJECTIVE: The purpose of this study was to retrospectively compare contrast-enhanced fat-suppressed T1-weighted images with histopathologic findings in ureteral carcinoma to develop accurate preoperative MR criteria for T staging. CONCLUSION: Contrast-enhanced fat-suppressed T1-weighted images can be used to distinguish thickened noncarcinomatous ureteral walls, which occur due to the proliferation of fibrous tissue, from ureteral carcinoma because fibrous tissue enhances more intensely on MRI than ureteral carcinoma. We also observed that when ureteral carcinomas had invaded periureteral fat tissue, a disruption or fragmentation of the intensely enhancing ureteral wall was seen. Using the MR criteria for T staging that we developed on the basis of these findings, we were able to accurately determine whether a carcinoma had invaded periureteral fat tissue in all of our patients.",

author = "Masao Obuchi and Kousei Ishigami and Koji Takahashi and Minoru Honda and Toshiyuki Mitsuya and Kuehn, {David M.} and Stolpen, {Alan H.} and Brown, {Bruce P.} and Akihiro Nishie",

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T1 - Gadolinium-enhanced fat-suppressed T1-weighted imaging for staging ureteral carcinoma

T2 - correlation with histopathology.

AU - Obuchi, Masao

AU - Ishigami, Kousei

AU - Takahashi, Koji

AU - Honda, Minoru

AU - Mitsuya, Toshiyuki

AU - Kuehn, David M.

AU - Stolpen, Alan H.

AU - Brown, Bruce P.

AU - Nishie, Akihiro

PY - 2007/3

Y1 - 2007/3

N2 - OBJECTIVE: The purpose of this study was to retrospectively compare contrast-enhanced fat-suppressed T1-weighted images with histopathologic findings in ureteral carcinoma to develop accurate preoperative MR criteria for T staging. CONCLUSION: Contrast-enhanced fat-suppressed T1-weighted images can be used to distinguish thickened noncarcinomatous ureteral walls, which occur due to the proliferation of fibrous tissue, from ureteral carcinoma because fibrous tissue enhances more intensely on MRI than ureteral carcinoma. We also observed that when ureteral carcinomas had invaded periureteral fat tissue, a disruption or fragmentation of the intensely enhancing ureteral wall was seen. Using the MR criteria for T staging that we developed on the basis of these findings, we were able to accurately determine whether a carcinoma had invaded periureteral fat tissue in all of our patients.

AB - OBJECTIVE: The purpose of this study was to retrospectively compare contrast-enhanced fat-suppressed T1-weighted images with histopathologic findings in ureteral carcinoma to develop accurate preoperative MR criteria for T staging. CONCLUSION: Contrast-enhanced fat-suppressed T1-weighted images can be used to distinguish thickened noncarcinomatous ureteral walls, which occur due to the proliferation of fibrous tissue, from ureteral carcinoma because fibrous tissue enhances more intensely on MRI than ureteral carcinoma. We also observed that when ureteral carcinomas had invaded periureteral fat tissue, a disruption or fragmentation of the intensely enhancing ureteral wall was seen. Using the MR criteria for T staging that we developed on the basis of these findings, we were able to accurately determine whether a carcinoma had invaded periureteral fat tissue in all of our patients.

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Gadolinium-enhanced fat-suppressed T1-weighted imaging for staging ureteral carcinoma: correlation with histopathology.

Abstract

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