Yoshinobu Komai1, Maki Sugimoto2, Naoto Gotohda3, Nobuaki Matsubara4, Tatsushi Kobayashi5, Yasuyuki Sakai6, Yoshiyuki Shiga7, Norio Saito6. 1. Department of Urology, National Cancer Center Hospital East, Chiba, Japan. Electronic address: yokomai@east.ncc.go.jp. 2. Department of Gastroenterology, Kobe University Graduate School of Medicine, National University Corporation, Hyogo, Japan. 3. Department of Hepatobiliary and Pancreatic Surgery, National Cancer Center Hospital East, Chiba, Japan. 4. Department of Breast and Medical Oncology, National Cancer Center Hospital East, Chiba, Japan. 5. Department of Diagnostic Radiology, National Cancer Center Hospital East, Chiba, Japan. 6. Department of Urology, National Cancer Center Hospital East, Chiba, Japan. 7. Department of Urology, Tokyo Nephro-Urology Center Yamato Hospital, Tokyo, Japan.
Abstract
OBJECTIVE: To report our initial experience with a novel style of 3-dimensional (3D) printed kidney, which we call "4D" surgical navigation in minimally invasive off-clamp partial nephrectomy (PN). MATERIALS AND METHODS: Ten patients with a R.E.N.A.L. nephrometry score ≥8 renal mass underwent minimally invasive off-clamp PN navigated with the aid of a patient-specific 3D printed kidney. To enhance the advantage of a 3D printed organ, we herein designed our 3D printed kidneys so that the tumor and its margin could be removed. This tumor removability allowed surgeons and patients to preoperatively visualize both the pre- and posttumor-resection kidney status, which we termed "4D" surgical navigation. Before patients consented to surgery, the surgical procedure and perioperative risks were explained to each patient using the patient-specific 3D printed kidney; subsequently, surgeons asked patients whether the 3D printed kidney model had helped them better understand their surgery than they would have without the model. RESULTS: All minimally invasive off-clamp PNs were successfully completed with acceptable perioperative outcomes and negative surgical margins. The 3D printed tumors together with their margins were nearly identical to the surgical specimens. All patients responded that their specific 3D printed kidney models had helped them understand their disease and the operations they underwent. CONCLUSION: This is the first report of a novel 3D printed organ style, which we termed "4D" surgical navigation. Use of the current 3D printed kidney models helped surgeons to perform minimally invasive off-clamp PN in complex tumor cases and also helped patients to more fully understand the operation.
OBJECTIVE: To report our initial experience with a novel style of 3-dimensional (3D) printed kidney, which we call "4D" surgical navigation in minimally invasive off-clamp partial nephrectomy (PN). MATERIALS AND METHODS: Ten patients with a R.E.N.A.L. nephrometry score ≥8 renal mass underwent minimally invasive off-clamp PN navigated with the aid of a patient-specific 3D printed kidney. To enhance the advantage of a 3D printed organ, we herein designed our 3D printed kidneys so that the tumor and its margin could be removed. This tumor removability allowed surgeons and patients to preoperatively visualize both the pre- and posttumor-resection kidney status, which we termed "4D" surgical navigation. Before patients consented to surgery, the surgical procedure and perioperative risks were explained to each patient using the patient-specific 3D printed kidney; subsequently, surgeons asked patients whether the 3D printed kidney model had helped them better understand their surgery than they would have without the model. RESULTS: All minimally invasive off-clamp PNs were successfully completed with acceptable perioperative outcomes and negative surgical margins. The 3D printed tumors together with their margins were nearly identical to the surgical specimens. All patients responded that their specific 3D printed kidney models had helped them understand their disease and the operations they underwent. CONCLUSION: This is the first report of a novel 3D printed organ style, which we termed "4D" surgical navigation. Use of the current 3D printed kidney models helped surgeons to perform minimally invasive off-clamp PN in complex tumor cases and also helped patients to more fully understand the operation.
Authors: Andrew R Christiansen; Rami M Shorti; Cory D Smith; William C Prows; Jay T Bishoff Journal: World J Urol Date: 2018-03-15 Impact factor: 4.226
Authors: Kaiyan Qiu; Zichen Zhao; Ghazaleh Haghiashtiani; Shuang-Zhuang Guo; Mingyu He; Ruitao Su; Zhijie Zhu; Didarul B Bhuiyan; Paari Murugan; Fanben Meng; Sung Hyun Park; Chih-Chang Chu; Brenda M Ogle; Daniel A Saltzman; Badrinath R Konety; Robert M Sweet; Michael C McAlpine Journal: Adv Mater Technol Date: 2017-12-06