Comparison of parenchymal volume loss assessed by three‐dimensional computed tomography volumetry and renal functional recovery between conventional and robot‐assisted laparoscopic partial nephrectomy

2021 ◽  
Author(s):  
Sohei Kanda ◽  
Takamitsu Inoue ◽  
Shiori Nakajima ◽  
Ryuichiro Sagehashi ◽  
Taketoshi Nara ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Partial Nephrectomy ◽  
Functional Recovery ◽  
Three Dimensional ◽  
Laparoscopic Partial Nephrectomy ◽  
Volume Loss ◽  
Robot Assisted ◽  
Computed Tomography Volumetry

scholarly journals Retroperitoneal Robot-Assisted Laparoscopic Partial Nephrectomy for Horseshoe Kidney: A Case Report

2021 ◽  
Author(s):  
Dongxu Zhang ◽  
Youyi Lu ◽  
Fengze Sun ◽  
Di Wang ◽  
Xingjun Bao ◽  
...  
Keyword(s):  
Case Report ◽  
Partial Nephrectomy ◽  
Tumor Resection ◽  
Three Dimensional ◽  
Horseshoe Kidney ◽  
Laparoscopic Partial Nephrectomy ◽  
Robot Assisted ◽  
3D Reconstructions ◽  
Case Presentations ◽  
The Right

Abstract Background: Horseshoe kidney (HSK) have always been a challenge for urologists depending on its particular anatomy. We report a case of renal tumor in a patient with HSK, who underwent tumor resection by retroperitoneal robot-assisted laparoscopic partial nephrectomy. Case Presentations: A 47-year-old man presented to our hospital with a solid renal mass. Computed tomography urography (CTU) showed a 4.3 × 4.4 cm mass in the upper pole of the right kidney. Patients received a retroperitoneal robot-assisted laparoscopic partial nephrectomy on basis of three-dimensional (3D) reconstructions.Conclusion: The present case report highlights the feasibility of robot-assisted laparoscopic partial nephrectomy for horseshoe kidney, and the advantages of preoperative 3D reconstructions.

scholarly journals MP34-02 PRINTED THREE-DIMENSIONAL ELASTIC ORGAN MODEL TO INCREASE ROBOT-ASSISTED LAPAROSCOPIC PARTIAL NEPHRECTOMY PERFORMANCE

2016 ◽  
Vol 195 (4S) ◽  
Author(s):  
Atsushi Okada ◽  
Keiichi Tozawa ◽  
Daichi Kobayashi ◽  
Kentaro Mizuno ◽  
Yukihiro Umemoto ◽  
...  
Keyword(s):  
Partial Nephrectomy ◽  
Three Dimensional ◽  
Laparoscopic Partial Nephrectomy ◽  
Robot Assisted ◽  
Organ Model

Clinical experience of using virtual 3D modelling for pre and intraoperative guidance during robotic-assisted partial nephrectomy

2021 ◽  
pp. 205141582110002
Author(s):  
Lorenz Berger ◽  
Aziz Gulamhusein ◽  
Eoin Hyde ◽  
Matt Gibb ◽  
Teele Kuusk ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Partial Nephrectomy ◽  
Surgical Outcome ◽  
Prospective Cohort ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Robotic Assisted ◽  
Robotic Assisted Partial Nephrectomy

Objective: Surgical planning for robotic-assisted partial nephrectomy is widely performed using two-dimensional computed tomography images. It is unclear to what extent two-dimensional images fully simulate surgical anatomy and case complexity. To overcome these limitations, software has been developed to reconstruct three-dimensional models from computed tomography data. We present the results of a feasibility study, to explore the role and practicality of virtual three-dimensional modelling (by Innersight Labs) in the context of surgical utility for preoperative and intraoperative use, as well as improving patient involvement. Methods: A prospective study was conducted on patients undergoing robotic-assisted partial nephrectomy at our high volume kidney cancer centre. Approval from a research ethics committee was obtained. Patient demographics and tumour characteristics were collected. Surgical outcome measures were recorded. The value of the three-dimensional model to the surgeon and patient was assessed using a survey. The prospective cohort was compared against a retrospective cohort and cases were individually matched using RENAL (radius, exophytic/endophytic, nearness to collecting system or sinus, anterior/posterior, location relative to polar lines) scores. Results: This study included 22 patients. Three-dimensional modelling was found to be safe for this prospective cohort and resulted in good surgical outcome measures. The mean (standard deviation) console time was 158.6 (35) min and warm ischaemia time was 17.3 (6.3) min. The median (interquartile range) estimated blood loss was 125 (50–237.5) ml. Two procedures were converted to radical nephrectomy due to the risk of positive margins during resection. The median (interquartile range) length of stay was 2 (2–3) days. No postoperative complications were noted and all patients had negative surgical margins. Patients reported improved understanding of their procedure using the three-dimensional model. Conclusion: This study shows the potential benefit of three-dimensional modelling technology with positive uptake from surgeons and patients. Benefits are improved perception of vascular anatomy and resection approach, and procedure understanding by patients. A randomised controlled trial is needed to evaluate the technology further. Level of evidence: 2b

scholarly journals Detection of a peritumoral pseudocapsule in patients with renal cell carcinoma undergoing robot-assisted partial nephrectomy using enhanced MDCT

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Makoto Toguchi ◽  
Toshio Takagi ◽  
Yuko Ogawa ◽  
Satoru Morita ◽  
Kazuhiko Yoshida ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Partial Nephrectomy ◽  
Renal Cell ◽  
Clear Cell ◽  
Robot Assisted ◽  
High Attenuation ◽  
Papillary Rcc ◽  
Clear Cell Rcc

AbstractTo investigate the detection of peritumoral pseudocapsule (PC) using multi-detector row computed tomography (MDCT) for tumors resected by robot-assisted laparoscopic partial nephrectomy (RAPN) for T1 renal cell carcinoma (RCC). Study participants included 206 patients with clinical T1 RCC who underwent RAPN between October 2017 and February 2018. Two radiologists who were blinded to the pathological findings evaluated the computed tomography (CT) images. Radiological diagnosis of a PC was defined by a combination of observations, including a low-attenuation rim between the tumor and renal cortex in the cortico-medullary phase and a high-attenuation rim at the edge of the tumor in the nephrogenic or excretory phase. A PC was detected on CT in 156/206 tumors (76%) and identified by pathology in 182/206 (88%) tumors including 153/166 (92%) clear cell RCC, 13/14 (93%) papillary RCC, and 7/16 (44%) chromophobe RCC. In the whole cohort, CT findings showed a sensitivity of 81.3% (148/182), specificity of 66.7% (16/24), and positive predictive value of 94.9% (148/156). When the data were stratified according to pathological subtypes, MDCT was observed to have a sensitivity of 86.9% (133/153) and specificity of 61.5% (8/13) in clear cell RCC, sensitivity of 38.5% (5/13) and specificity of 100% (1/1) in papillary RCC, and sensitivity of 44.4% (4/7) and specificity of 66.7% (6/9) in chromophobe RCC. A low or high-attenuation rim around the tumor in the cortico-medullary or nephrographic-to-excretory phase indicates a PC of RCC, though the accuracy is not satisfactory even with 64- or 320-detector MDCT.

Three-dimensional augmented reality transperitoneal robot assisted partial nephrectomy (3d ar-rapn): A new tool to identify the hidden tumours

2019 ◽  
Vol 18 (6) ◽  
pp. e2690 ◽  
Author(s):  
F. Porpiglia ◽  
E. Checcucci ◽  
D. Amparore ◽  
F. Piramide ◽  
P. Verri ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Partial Nephrectomy ◽  
Three Dimensional ◽  
Robot Assisted
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