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KMID : 1001020170150010038
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Journal of Urologic Oncology
2017 Volume.15 No. 1 p.38 ~ p.43
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Visible Angle on Magnetic Resonance Imaging Can Be Considered Indicator of Postoperative Outcome in Retropubic Radical Prostatectomy
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Kwon Se-Yun
Lee Jun-Nyung
Ha Yun-Sok
Choi Seock-Hwan
Kim Hyun-Tae
Kim Tae-Hwan
Kwon Tae-Gyun
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Abstract
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Purpose: We aimed to measure the visible angle (VA) outside the surgical field of view using preoperative magnetic resonance imaging (MRI), and to relate structural data to clinical outcome.
Materials and Methods: We retrospectively analyzed data obtained from 322 consecutive patients who underwent robot-assisted laparoscopic radical prostatectomy (RALP) or radical retropubic prostatectomy (RRP) for prostate cancer from January 2011 to June 2013, with at least 1 year of follow-up. Patients were divided into 4 groups, according to median VA values and surgical approach. VA was defined as the angle between the horizontal line on view, rotated to 90º from the midsagittal T2-weighted sequence image, and the tangent line of the highest protruding surface of the symphysis pubis.
Results: The larger VA was, the shorter mean operative time (213.2 minutes vs. 174.2 minutes, p=0.002) was significantly and the smaller VA was, the higher complication rate (10.8% vs. 1.6%, p=0.043) was in RRP patients. There were no significant differences in operative outcomes in RALP patients.
Conclusions: VA in midsagittal T2-weighted sequence predict operative time and complication rates in retropubic radical prostatectomy, and thus, the value may be used as surgical indications for retropubic radical prostatectomy.
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KEYWORD
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Robot-assisted laparoscopic radical prostatectomy, Retropubic radical prostatectomy, Magnetic resonance imaging
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