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3d cholangiography

Jei Hee Lee, Bohyun Kim, Hye Jin Kim, Bong-Wan Kim, Hee-Jung Wang, Jai Keun Kim
PURPOSE: To determine the feasibility of high-resolution navigated three-dimensional (3D) T1-weighted hepatobiliary MR cholangiography (Nav T1 MRC) using Gd-EOB-DTPA for biliary visualization in living liver donors and to assess added value of 3D T1-weighted hepatobiliary MRCs in improving the confidence and diagnostic accuracy of biliary anatomy in complementary to T2-weighted MRCs. METHODS: Twenty-nine right liver donors underwent 3D T2 MRC, 2D T2 MRC, breath-hold T1-weighted hepatobiliary MRC (BH T1 MRC), and Nav T1 MRC...
February 15, 2018: Abdominal Radiology
Suk Kyun Hong, Kyung-Suk Suh, Hyo-Sin Kim, Kyung Chul Yoon, Sung-Woo Ahn, Hyeyoung Kim, Nam-Joon Yi, Kwang-Woong Lee
BACKGROUND: Improvements in laparoscopic imaging systems and instruments have increased the performance of pure laparoscopic living donor hepatectomy. This operation is no longer limited to left lateral sectionectomy but is used for left hepatectomy and right hepatectomy.1-5 This report describes a donor who underwent pure laparoscopic left lateral sectionectomy and in situ reduction using 3D laparoscopy and indocyanine green (ICG) near-infrared fluorescence cholangiography to obtain a monosegment...
February 12, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
A Andert, P Bruners, C Heidenhain, F Ulmer, C D Klink, P H Alizai, C Kuhl, U P Neumann, M Binnebösel
INTRODUCTION: The purpose of this study was to analyse the value of 3-dimensional computed tomography cholangiography (3D-ERC) compared to conventional retrograde cholangiography in the preoperative diagnosis of hilar cholangiocarcinoma (HC) with special regard to the resection margin status (R0/R1). PATIENTS AND METHODS: All hepatic resections performed between January 2011 and November 2013 in patients with HC at the Department of General, Visceral and Transplant Surgery of the RWTH Aachen University Hospital were analysed...
2017: Gastroenterology Research and Practice
Ajay V Maker, Nicholas Kunda
BACKGROUND: Bile duct injury is a rare but serious complication of minimally invasive cholecystectomy. Traditionally, intraoperative cholangiogram has been used in difficult cases to help delineate anatomical structures, however, new imaging modalities are currently available to aid in the identification of extrahepatic biliary anatomy, including near-infrared fluorescent cholangiography (NIFC) using indocyanine green (ICG).1-5 The objective of the study was to evaluate if this technique may aid in safe dissection to obtain the critical view...
November 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
Suk Kyun Hong, Kyung-Suk Suh, Hyo-Sin Kim, Kyung Chul Yoon, Sung-Woo Ahn, Dongkyu Oh, Hyeyoung Kim, Nam-Joon Yi, Kwang-Woong Lee
BACKGROUND: Despite increases in the performance of pure laparoscopic living donor hepatectomy, variations in the bile duct or portal vein have been regarded as relative contraindications to this technique [1-3]. This report describes a donor with separate right posterior and right anterior hepatic ducts and portal veins who underwent pure laparoscopic living donor right hemihepatectomy, integrated with 3D laparoscopy and indocyanine green (ICG) near-infrared fluorescence cholangiography [1, 4, 5]...
November 2017: Surgical Endoscopy
Hyo-Jin Kang, Jeong Min Lee, Jeong Hee Yoon, Ijin Joo, Won Chang, Kyung-Suk Suh, Kwang-Woong Lee, Nam-Joon Yi, Joon Koo Han
PURPOSE: To determine the incremental value of small field of view (sFOV) high-resolution (HR) gadoxetic acid-enhanced 3D T1 -weighted (W) magnetic resonance cholangiography (MRC) for evaluating the biliary anatomy of potential living donors by comparing it to T2 W-MRC. MATERIALS AND METHODS: In all, 73 living donor candidates underwent gadoxetic acid-enhanced MRI (3.0T) including three kinds of MRCs: 3D multislice T2 W-MRC, regular FOV (rFOV) (380 × 380mm, resolution 1...
April 11, 2017: Journal of Magnetic Resonance Imaging: JMRI
Stefano Palmucci, Federica Roccasalva, Marina Piccoli, Giovanni Fuccio Sanzà, Pietro Valerio Foti, Alfonso Ragozzino, Pietro Milone, Giovanni Carlo Ettorre
Since its introduction, MRCP has been improved over the years due to the introduction of several technical advances and innovations. It consists of a noninvasive method for biliary tree representation, based on heavily T2-weighted images. Conventionally, its protocol includes two-dimensional single-shot fast spin-echo images, acquired with thin sections or with multiple thick slabs. In recent years, three-dimensional T2-weighted fast-recovery fast spin-echo images have been added to the conventional protocol, increasing the possibility of biliary anatomy demonstration and leading to a significant benefit over conventional 2D imaging...
2017: Gastroenterology Research and Practice
Masaki Ogawa, Yoshiyuki Ozawa, Kengo Ohta, Tomoya Sekiguchi, Shingo Omata, Misugi Urano, Yoichi Matsuo, Yuta Shibamoto
PURPOSE: For liver surgery, it is crucial to preoperatively examine the course of the right posterior bile duct. While MR cholangiopancreatography (MRCP) can only visualize the bile ducts, 3D balanced turbo-field-echo (BTFE) sequence clearly depicts the bile ducts and portal veins as well as drip infusion CT cholangiography (DIC-CT), without contrast media. We evaluated whether BTFE could substitute for DIC-CT. MATERIALS AND METHODS: Thirty patients undergoing MRCP and BTFE on 1...
March 4, 2017: Abdominal Radiology
Larry Cai, Benjamin M Yeh, Antonio C Westphalen, John Roberts, Zhen J Wang
PURPOSE: To investigate whether the addition of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced 3D T1-weighted MR cholangiography (T1w-MRC) to 3D T2-weighted MRC (T2w-MRC) improves the confidence and diagnostic accuracy of biliary anatomy in living liver donors. METHODS: Two abdominal radiologists retrospectively and independently reviewed pre-operative MR studies in 58 consecutive living liver donors. The second-order bile duct visualization on T1w- and T2w-MRC images was rated on a 4-point scale...
March 2017: Abdominal Radiology
Bohyun Kim, Kyoung Won Kim, So Yeon Kim, So Hyun Park, Jeongjin Lee, Gi Won Song, Dong-Hwan Jung, Tae-Yong Ha, Sung Gyu Lee
PURPOSE: To compare the length of the right hepatic duct (RHD) measured on rotatory coronal 2D MR cholangiography (MRC), rotatory axial 2D MRC, and reconstructed 3D MRC. MATERIALS AND METHODS: Sixty-seven donors underwent coronal and axial 2D projection MRC and 3D MRC. RHD length was measured and categorized as ultrashort (≤1 mm), short (>1-14 mm), and long (>14 mm). The measured length, frequency of overestimation, and the degree of underestimation between two 2D MRC sets were compared to 3D MRC...
May 2017: European Radiology
Takeshi Urade, Takumi Fukumoto, Masahiro Kido, Atsushi Takebe, Motofumi Tanaka, Kaori Kuramitsu, Hisoka Kinoshita, Hirochika Toyama, Tetsuo Ajiki, Takeshi Iwasaki, Masahiro Tominaga, Yonson Ku
No abstract text is available yet for this article.
October 2016: Liver Transplantation
C Lemaitre, S Dominique, E Billoud, M Eliezer, H Montialoux, M Quillard, G Riachi, E Koning, H Morisse-Pradier, G Savoye, C Savoye-Collet, O Goria
Background. Cystic fibrosis-associated liver disease (CFLD) is a major cause of death. The objective of our retrospective study was to describe the relevance of magnetic resonance imaging (MRI) and liver stiffness measurement (LSM) for CFLD evaluation. Methods. All cystic fibrosis adult patients evaluated by MRI and LSM were included. MR signs of portal hypertension (PHT), dysmorphia, or cholangitis were collected and LSM expressed in kPa and Metavir. Results. Of 25 patients, 52% had abnormal MRI. Median LSM was 5...
2016: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
Piero Boraschi, Francescamaria Donati, Roberto Gigoni, Franco Filipponi
PURPOSE: To assess whether contrast-enhanced T1-weighted MR Cholangiography may provide additional information in the evaluation of biliary complications in orthotopic liver transplant recipients. MATERIAL AND METHODS: Eighty liver transplant patients with suspicion of biliary adverse events underwent MR imaging at 1.5 T scanner. After acquisition of axial T1-/T2-weighted images and conventional T2-weighted MR Cholangiography (image set 1), 3D gradient-echo T1-weighted fat-suppressed LAVA (Liver Acquisition with Volume Acceleration) sequences were obtained about 30 min after intravenous infusion of mangafodipir trisodium (Mn-DPDP,Teslascan(®)) (image set 2)...
2016: European Journal of Radiology Open
Koichi Yokoyama, Takeshi Nakaura, Yuji Iyama, Seiji Sakamoto, Atsushi Takemura, Tomoyuki Okuaki, Kazunori Harada, Yasuyuki Yamashita
PURPOSE: To evaluate the image quality and acquisition time of magnetic resonance cholangiopancreatography (MRCP) with and without the 3D hybrid profile order technique. MATERIALS AND METHODS: We studied 32 consecutive patients at 3T. They underwent MRCP with and without the 3D hybrid profile order imaging technique during free breathing and MRCP with the 3D hybrid profile order technique during a single breath-hold. The image acquisition time was 82% shorter with the 3D hybrid profile order technique than without it...
November 2016: Journal of Magnetic Resonance Imaging: JMRI
Franck P Vidal, Pierre-Frédéric Villard
We present a framework that combines evolutionary optimisation, soft tissue modelling and ray tracing on GPU to simultaneously compute the respiratory motion and X-ray imaging in real-time. Our aim is to provide validated building blocks with high fidelity to closely match both the human physiology and the physics of X-rays. A CPU-based set of algorithms is presented to model organ behaviours during respiration. Soft tissue deformation is computed with an extension of the Chain Mail method. Rigid elements move according to kinematic laws...
April 2016: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
Gil-Sun Hong, Jae Ho Byun, Jin Hee Kim, Hyoung Jung Kim, Seung Soo Lee, Seung-Mo Hong, Moon-Gyu Lee
OBJECTIVES: To evaluate thread sign of biliary intraductal papillary mucinous neoplasm (B-IPMN) on magnetic resonance imaging (MRI). METHODS: Thread sign was defined as intraductal linear or curvilinear hypointense striations. Two radiologists independently evaluated the presence and location of thread sign on MR cholangiography (thin-slice, thick-slab and 3D MRC) and axial MR images (T2 TSE, T2 HASTE and DWI) in patients with B-IPMN (n = 38) and in matched control groups with benign (n = 36) or malignant (n = 35) biliary diseases...
September 2016: European Radiology
Lionel Arrivé, Marianne Hodoul, Antoune Arbache, Lucie Slavikova-Boucher, Yves Menu, Sanaâ El Mouhadi
Magnetic resonance cholangiography (MRC) has become the standard of reference for imaging of the biliary ducts. The use of three-dimensional (3D) sequences has resulted in improved spatial resolution with virtually isotropic voxel and improved signal/noise ratio. In addition to MRC images, 3D fat suppressed T1-weighted MR images should be systematically obtained to search for intrahepatic calculi. MRC plays a major role in the diagnosis of cholangiocarcinoma and assessment of its resectability. With modern MR systems the performance of MR is basically the same that of CT for evaluation of arterial and portal vein extent...
December 2015: Clinics and Research in Hepatology and Gastroenterology
Tian-Chong Wu, Chi-Hua Fang, Wen-Ying Liu, Wei Cai, Ying-Fang Fan, Jian Yang, Ning Zeng, Shi-Zhen Zhong, Su-Su Bao
BACKGROUND/AIMS: Three-dimensional (3D) imaging may improve surgical interventions for complicated hepatolithiasis. METHODOLOGY: Between July 2008 and December 2012 a total of 131 patients with complicated hepatolithiasis underwent surgical therapy in the Department of Hepatobiliary Surgery Zhujiang Hospital, Southern Medical University. 77 patients received preoperative planning using a computed tomography (CT)-based 3D reconstruction technique, and 54 received treatment based on preoperative planning with traditional imaging (CT, ultrasonography, magnetic resonance imaging/magnetic resonance cholangiography)...
May 2014: Hepato-gastroenterology
Yukihiro Okuda, Kojiro Taura, Satoru Seo, Kentaro Yasuchika, Takashi Nitta, Kohei Ogawa, Etsuro Hatano, Shinji Uemoto
BACKGROUND: The complexity of hepatic hilar anatomy is an obstacle to precise diagnosis of tumor spread and appropriate operative planning for biliary malignancies. Three-dimensional (3D) cholangiography and angiography may overcome this obstacle and facilitate curative resection. The objective of this study was to evaluate the impact of 3D CT cholangiography on operative planning and outcomes of biliary malignancies. METHODS: From 2009 to 2014, 3DCT cholangiography was performed on 49 patients with biliary malignancies requiring major hepatic resection and extrahepatic bile duct resection...
November 2015: Surgery
Sonja Kinner, Verena Steinweg, Stefan Maderwald, Arnold Radtke, Georgios Sotiropoulos, Michael Forsting, Tobias Schroeder
OBJECTIVES: Preoperative evaluation of potential living liver donors (PLLDs) includes the assessment of the biliary anatomy to avoid postoperative complications. Aim of this study was to compare T2-weighted (T2w) and Gd-EOB-DTPA enhanced T1-weighted (T1w) magnetic resonance cholangiography (MRC) techniques in the evaluation of PLLDs. MATERIALS AND METHODS: 30 PLLDs underwent MRC on a 1.5 T Magnetom Avanto (Siemens, Erlangen, Germany) using (A) 2D T2w HASTE (Half Fourier Acquisition Single Shot Turbo Spin Echo) fat saturated (fs) in axial plane, (B) 2D T2w HASTE fs thick slices in coronal plane, (C) free breathing 3D T2w TSE (turbo spin echo) RESTORE (high-resolution navigator corrected) plus (D) maximum intensity projections (MIPs), (E) T2w SPACE (sampling perfection with application optimized contrasts using different flip angle evolutions) plus (F) MIPs and (G) T2w TSE BLADE as well as Gd-EOB-DTPA T1w images without (G) and with (H) inversion recovery...
2014: PloS One
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