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3D printed and liver resection

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https://www.readbyqxmd.com/read/28343411/three-dimensional-liver-surgery-simulation-computer-assisted-surgical-planning-with-three-dimensional-simulation-software-and-three-dimensional-printing
#1
Yukio Oshiro, Nobuhiro Ohkohchi
To perform accurate hepatectomy without injury, it is necessary to understand the anatomical relationship among the branches of Glisson's sheath, hepatic veins, and tumor. In Japan, three-dimensional (3D) preoperative simulation for liver surgery is becoming increasingly common, and liver 3D modeling and 3D hepatectomy simulation by 3D analysis software for liver surgery have been covered by universal healthcare insurance since 2012. Herein, we review the history of virtual hepatectomy using computer-assisted surgery (CAS) and our research to date, and we discuss the future prospects of CAS...
April 25, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28144830/cost-effective-personalized-3d-printed-liver-model-for-preoperative-planning-before-laparoscopic-liver-hemihepatectomy-for-colorectal-cancer-metastases
#2
Jan Sylwester Witowski, Michał Pędziwiatr, Piotr Major, Andrzej Budzyński
PURPOSE: Three-dimensional (3D) printing for preoperative planning has been intensively developed in the recent years. However, the implementation of these solutions in hospitals is still difficult due to high costs, extremely expensive industrial-grade printers, and software that is difficult to obtain and learn along with a lack of a defined process. This paper presents a cost-effective technique of preparing 3D-printed liver models that preserves the shape and all of the structures, including the vessels and the tumor, which in the present case is colorectal liver metastasis...
January 31, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28134003/development-of-a-patient-specific-3d-printed-liver-model-for-preoperative-planning
#3
Marta J Madurska, Matthieu Poyade, David Eason, Paul Rea, Angus J M Watson
INTRODUCTION: Liver surgery is widely used as a treatment modality for various liver pathologies. Despite significant improvement in clinical care, operative strategies, and technology over the past few decades, liver surgery is still risky, and optimal preoperative planning and anatomical assessment are necessary to minimize risks of serious complications. 3D printing technology is rapidly expanding, and whilst appliactions in medicine are growing, but its applications in liver surgery are still limited...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/27587211/-the-construction-of-three-dimensional-visualization-platform-and-its-application-in-diagnosis-and-treatment-for-hilar-cholangiocarcinoma
#4
N Zeng, C H Fang, Y F Fan, J Yang, N Xiang, W Zhu, J Liu, W Cai, Z K Mo
OBJECTIVE: To explore the construction and clinical efficacy of three-dimensional(3D) visualization platform about diagnosis and treatment of hilar cholangiocarcinoma. METHODS: From January 2009 to December 2015, a total of 32 patients with hilarcholangiocarcinoma treated in Zhujiang Hospital of Southern Medical University were analyzed.There were 20 male and 12 female patients aged from 40 to 85 years. Bismuth-Corlette 3D visualization type: 2 cases with type Ⅰ, 5 cases with type Ⅱ, 10 cases with type Ⅲa, 11 cases with type Ⅲb, 4 cases with type Ⅳ...
September 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27489617/3d-haptic-modelling-for-preoperative-planning-of-hepatic-resection-a-systematic-review
#5
REVIEW
David S C Soon, Michael P Chae, Charles H C Pilgrim, Warren Matthew Rozen, Robert T Spychal, David J Hunter-Smith
INTRODUCTION AND BACKGROUND: Three dimensional (3D) printing has gained popularity in the medical field because of increased research in the field of haptic 3D modeling. We review the role of 3D printing with specific reference to liver directed applications. METHODS: A literature search was performed using the scientific databases Medline and PubMed. We performed this in-line with the PRISMA [20] statement. We only included articles in English, available in full text, published about adults, about liver surgery and published between 2005 and 2015...
September 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27456277/a-novel-three-dimensional-print-of-liver-vessels-and-tumors-in-hepatectomy
#6
Yukio Oshiro, Jun Mitani, Toshiyuki Okada, Nobuhiro Ohkohchi
Creating a three-dimensional (3D)-printed liver model is costly, and the visibility of the inner structures is slightly hindered. We developed a novel structure that simultaneously solves both of these problems. The outer frames were set up along the liver surface. Our structure did not use the transparent loading material because this material increases the printing cost. Therefore, we were able to directly observe the inside of the structure. We performed hepatectomy using this novel 3D-printed liver model...
April 2017: Surgery Today
https://www.readbyqxmd.com/read/26018255/-application-of-3d-visualization-3d-printing-and-3d-laparoscopy-in-the-diagnosis-and-surgical-treatment-of-hepatic-tumors
#7
Chihua Fang, Zhaoshan Fang, Yingfang Fan, Jianyi Li, Fei Xiang, Haisu Tao
OBJECTIVE: To study the value of three-dimensional (3D) visualization, 3D printing and 3D laparoscopy (3-3D techniques) in the diagnosis and surgical treatment of hepatic tumors. METHODS: From November 2013 to January 2015, 22 patients with hepatic tumors admitted in our department underwent abdominal thin-slice CT scanning. The CT images were imported into Medical Image three Dimensional Visualization System (MI-3DVS) for 3D reconstruction. Standard Template Library (STL) files were exported for 3D printing...
May 2015: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/25145821/application-of-a-three-dimensional-print-of-a-liver-in-hepatectomy-for-small-tumors-invisible-by-intraoperative-ultrasonography-preliminary-experience
#8
Tsuyoshi Igami, Yoshihiko Nakamura, Tomoaki Hirose, Tomoki Ebata, Yukihiro Yokoyama, Gen Sugawara, Takashi Mizuno, Kensaku Mori, Masato Nagino
BACKGROUND: Hepatectomy for an invisible small tumor using intraoperative ultrasonography requires technical ingenuity. We used a 3D print of a liver to perform a hepatectomy on two patients with synchronous multiple liver metastases from colorectal cancer. Because of preoperative chemotherapy, one of the tumors became smaller and invisible to ultrasonography in each case. We present our procedure here. METHODS: Multidetector-row computed tomography images of anatomical structures were digitally segmented using the original software "PLUTO," which was developed at the Graduate School of Information Science, Nagoya University...
December 2014: World Journal of Surgery
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