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- Title
Prediction of Intraoperative Urinary Collecting System Entry in Patients with Peripheral Renal Tumors Undergoing Partial Nephrectomy: Usefulness of Tumor-Centered Multiplanar Reconstruction.
- Authors
Uehara, Sho; Yoshida, Soichiro; Tanaka, Hiroshi; Yasuda, Yosuke; Tanaka, Hajime; Kijima, Toshiki; Yokoyama, Minato; Ishioka, Junichiro; Matsuoka, Yoh; Saito, Kazutaka; Fujii, Yasuhisa
- Abstract
Objective: To assess the usefulness of tumor-centered multiplanar reconstruction (TC-MPR) for predicting intraoperative urinary collecting system (UCS) entry in patients with peripheral renal tumors undergoing partial nephrectomy (PN). Methods: Dynamic computed tomography images of 50 peripheral cT1 renal tumors treated with laparoendoscopic PN were analyzed. TC-MPR generated a digital crosssectional image showing the tumor center and the closest calyx on a same plane. Patients and tumor characteristics including the distance from the tumor margin to the closest calyx (MPR-distance), and the angle formed by 2 tangent lines from the closest calyx to the tumor (MPR-angle) were assessed. Results: Intraoperative UCS entry was observed in 15 patients (30%). The patients who experienced intraoperative UCS entry had a higher RENAL score, wider MPR-angle, and shorter MPR-distance than those who did not (p = 0.04, p = 0.001, p < 0.001, respectively). Multivariate analysis identified MPR-angle as an independent factor for intraoperative UCS entry (p < 0.001). Conclusions: The spatial information assessed using TC-MPR serves as a predictive factor for intraoperative UCS entry during PN.
- Subjects
RENAL cancer patients; RENAL cancer treatment; NEPHRECTOMY; MULTIDETECTOR computed tomography; SURGICAL complications
- Publication
Urologia Internationalis, 2018, Vol 100, Issue 1, p85
- ISSN
0042-1138
- Publication type
Article
- DOI
10.1159/000484254