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https://www.readbyqxmd.com/read/28921932/fetal-mri-compared-to-ultrasound-for-the-diagnosis-of-obstructive-genital-malformations
#1
Anne Elodie Millischer, David Grevent, Véronique Rousseau, Neil O'Gorman, Pascale Sonigo, Bettina Bessieres, Yves Ville, Nathalie Boddaert, Laurent J Salomon
OBJECTIVE: To compare the accuracy of Magnetic Resonance Imaging (MRI) and ultrasound (US) to diagnose and characterize congenital obstructive genital abnormalities. METHOD: Retrospective cohort of 20 fetuses who underwent a fetal MRI following an ultrasound diagnosis of obstructive urogenital malformation. We compared MRI and US findings and their correlation with the definitive diagnosis. RESULT: The correct diagnosis was obtained in 6/20 (30%) cases and 19/20 cases (95%) with US and MRI respectively...
September 16, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28863161/diffusion-weighted-imaging-in-patients-with-rectal-cancer-comparison-between-gaussian-and-non-gaussian-models
#2
Georgios C Manikis, Kostas Marias, Doenja M J Lambregts, Katerina Nikiforaki, Miriam M van Heeswijk, Frans C H Bakers, Regina G H Beets-Tan, Nikolaos Papanikolaou
PURPOSE: The purpose of this study was to compare the performance of four diffusion models, including mono and bi-exponential both Gaussian and non-Gaussian models, in diffusion weighted imaging of rectal cancer. MATERIAL AND METHODS: Nineteen patients with rectal adenocarcinoma underwent MRI examination of the rectum before chemoradiation therapy including a 7 b-value diffusion sequence (0, 25, 50, 100, 500, 1000 and 2000 s/mm2) at a 1.5T scanner. Four different diffusion models including mono- and bi-exponential Gaussian (MG and BG) and non-Gaussian (MNG and BNG) were applied on whole tumor volumes of interest...
2017: PloS One
https://www.readbyqxmd.com/read/28846947/transanal-total-mesorectal-excision-as-a-surgical-procedure-for-diffuse-cavernous-hemangioma-of-the-rectum-a-case-report
#3
Xian-Rui Wu, Wei-Wen Liang, Xing-Wei Zhang, Liang Kang, Ping Lan
BACKGROUND: The safety and feasibility of transanal total mesorectal excision (TaTME) were demonstrated in the management of rectal cancer. However, its role in the management of patients with diffuse cavernous hemangioma of the rectum (DCHR) has not been evaluated. METHODS: A female patient with DCHR was admitted to our hospital. Colonoscopy, magnetic resonance imaging (MRI), abdominal computed tomography (CT) and arteriography were performed. Lesions were detected in mesorectum and rectal wall extending from the dentate line to 5cm proximally...
August 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28836241/-standardized-development-of-transanal-endoscopic-microsurgery
#4
Guole Lin
Transanal endoscopic microsurgery (TEM) is currently the only one-port system in endoscopic surgery, which a direct endoluminal approach can lead to the target organ through a natural opening of human body. TEM has been applied in colorectal surgery for over 3 decades. Compared with radical surgery, TEM has the advantages, such as quicker recovery, shorter hospital stay and fewer complications. One perfect TEM surgical system, which mainly consists of three parts, namely peculiar rectoscope for surgery, special surgical instruments and imaging system, is the foundation of standardized development of TEM...
August 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28803449/prospective-comparison-between-magnetic-resonance-imaging-and-computed-tomography-in-colorectal-cancer-staging
#5
Frederick H X Koh, Ker-Kan Tan, Lynette L S Teo, Bertrand W L Ang, Yee-Liang Thian
BACKGROUND: Diffusion-weighted (DW) imaging is a functional magnetic resonance imaging (MRI) technique that detects lesions with high cellularity, such as malignant tumours. This prospective study was performed to compare the accuracy of DW-MRI with multidetector computed tomography (MDCT) in staging of colorectal cancer. METHODS: Thirty patients with histologically proven colorectal cancer were prospectively recruited. Each patient underwent both MDCT and DW-MRI of the abdomen-pelvis for primary staging...
August 13, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28802956/magnetic-resonance-imaging-compared-with-rectal-endoscopic-sonography-for-the-prediction-of-infiltration-depth-in-colorectal-endometriosis
#6
Arane Kim, Pedro Fernandez, Brigitte Martin, Laurent Palazzo, Lara Ribeiro-Parenti, Francine Walker, Margot Bucau, Dominique Luton, Carmen Chis, Martin Koskas
STUDY OBJECTIVE: To compare the accuracies of magnetic resonance imaging (MRI) and rectal endoscopic sonography (RES) in the prediction of the infiltration depth of colorectal endometriosis. DESIGN: Retrospective cohort study (Canadian Task Force classification II-2). SETTING: University teaching hospital. PATIENTS: Forty patients with symptomatic deep infiltrating endometriosis (DIE) of the rectum who underwent colorectal resection were included...
August 9, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28762189/prediction-of-lateral-pelvic-lymph-node-metastasis-from-lower-rectal-cancer-using-magnetic-resonance-imaging-and-risk-factors-for-metastasis-multicenter-study-of-the-lymph-node-committee-of-the-japanese-society-for-cancer-of-the-colon-and-rectum
#7
Shimpei Ogawa, Jin-Ichi Hida, Hideyuki Ike, Tetsushi Kinugasa, Mitsuyoshi Ota, Eiji Shinto, Michio Itabashi, Takahiro Okamoto, Masakazu Yamamoto, Kenichi Sugihara, Toshiaki Watanabe
PURPOSE: The goal of the study was to examine prediction of lateral pelvic lymph node (LPLN) metastasis from lower rectal cancer using a logistic model including risk factors for LPLN metastasis and magnetic resonance imaging (MRI) clinical LPLN (cLPLN) status, compared to prediction based on MRI alone. METHODS: The subjects were 272 patients with lower rectal cancer who underwent MRI prior to mesorectal excision combined with LPLN dissection (LPLD) at six institutes...
July 31, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28757404/intermediate-dose-volume-parameters-and-the-development-of-late-rectal-toxicity-after-mri-guided-brachytherapy-for-locally-advanced-cervix-cancer
#8
Reem Ujaimi, Michael Milosevic, Anthony Fyles, Akbar Beiki-Ardakani, Marco Carlone, Haiyan Jiang, Patricia Lindsay, Jason Xie, Rachel Gerber, Jennifer Croke, Julia Skliarenko, Wilfred Levin, Kathy Han
PURPOSE: The dose delivered to the most exposed 2 cm(3) [Formula: see text] of the rectum and bladder is predictive of late rectal and bladder toxicity in cervix cancer patients. We investigated the predictive value of intermediate doses to the rectum and bladder for late rectal/bladder toxicity after MRI-guided brachytherapy for patients with locally advanced cervix cancer. METHODS AND MATERIALS: Toxicity was prospectively graded using Common Toxicity Criteria for Adverse Events v4...
July 27, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28755256/rectal-sparing-approach-after-preoperative-radio-and-or-chemotherapy-resarch-in-patients-with-rectal-cancer-a-multicentre-observational-study
#9
A Barina, A De Paoli, P Delrio, M Guerrieri, A Muratore, F Bianco, D Vespa, C Asteria, E Morpurgo, A Restivo, C Coco, U Pace, C Belluco, C Aschele, S Lonardi, V Valentini, G Mantello, I Maretto, P Del Bianco, A Perin, S Pucciarelli
BACKGROUND: Rectum-sparing approaches appear to be appropriate in rectal cancer patients with a major (mCR) or complete clinical response (cCR) after neoadjuvant therapy. The aim of the present study is to evaluate the effectiveness of rectum-sparing approaches at 2 years after the completion of neoadjuvant treatment. STUDY DESIGN: Patients with rectal adenocarcinoma eligible to receive neoadjuvant therapy will be prospectively enrolled. Patients will be restaged 7-8 weeks after the completion of neoadjuvant therapy and those with mCR (defined as absence of mass, small mucosal irregularity no more than 2 cm in diameter at endoscopy and no metastatic nodes at MRI) or cCR will be enrolled in the trial...
July 28, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28723770/initial-application-of-transanal-endoscopic-microsurgery-for-high-risk-lower-rectal-gastrointestinal-stromal-tumor-after-imatinib-mesylate-neoadjuvant-chemotherapy-a-case-report
#10
Qiaofei Liu, Guangxi Zhong, Weixun Zhou, Guole Lin
RATIONALE: The lower rectal gastrointestinal stromal tumor (GIST) is a rare entity and warrants special attentions because of the considerations of preserving of anal and urinal functions. Neoadjuvant therapy with imatinib mesylate (IM) has achieved great success in GIST, which potentially extends the applications of function-preserving minimally invasive surgical procedures. Transanal endoscopic microsurgery (TEM) is a well-developed minimally invasive technique for benign tumors in lower rectum...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28706185/deep-learning-for-fully-automated-localization-and-segmentation-of-rectal-cancer-on-multiparametric-mr
#11
Stefano Trebeschi, Joost J M van Griethuysen, Doenja M J Lambregts, Max J Lahaye, Chintan Parmer, Frans C H Bakers, Nicky H G M Peters, Regina G H Beets-Tan, Hugo J W L Aerts
Multiparametric Magnetic Resonance Imaging (MRI) can provide detailed information of the physical characteristics of rectum tumours. Several investigations suggest that volumetric analyses on anatomical and functional MRI contain clinically valuable information. However, manual delineation of tumours is a time consuming procedure, as it requires a high level of expertise. Here, we evaluate deep learning methods for automatic localization and segmentation of rectal cancers on multiparametric MR imaging. MRI scans (1...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694116/effect-of-bladder-distension-on-doses-to-organs-at-risk-in-pulsed-dose-rate-3d-image-guided-adaptive-brachytherapy-for-locally-advanced-cervical-cancer
#12
Jean Philippe Nesseler, Claire Charra-Brunaud, Julia Salleron, Jean François Py, Andres Huertas, Emilie Meknaci, Florent Courrech, Didier Peiffert, Sophie Renard-Oldrini
PURPOSE: To evaluate the impact of bladder distension on doses to organs at risk in patients treated with 3D image-guided adaptive pulsed-dose-rate (PDR) brachytherapy (BT) for locally advanced cervical cancer. METHODS AND MATERIALS: Twenty-two patients who had previously been treated by external beam radiation therapy (EBRT), underwent BT treatment planning to a pelvic MRI (or a CT scan in case of contraindication) after their bladder was filled with 100 cc of physiological saline (full bladder)...
July 7, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28667041/placental-fetal-thrombotic-vasculopathy-occurring-in-association-with-megacystis-microcolon-intestinal-hypoperistalsis-syndrome-a-case-report
#13
Anneliese Vélez-Pérez, Pamela Younes, Nina Tatevian
Megacystis-microcolon-intestinal hypoperistalsis syndrome (MMIHS) is a rare disease of functional obstruction affecting the bladder and intestines, characterized by a markedly distended bladder, microcolon, and decreased or absent intestinal peristalsis. Afflicted neonates have very poor prognosis, usually with fatal outcomes in first days to months of life. Placental fetal thrombotic vasculopathy (FTV) is a thrombo-occlusive disorder of the chorionic plate and fetal circulation. Herein, we describe an undocumented association of MMIHS and placental FTV...
May 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28658872/mri-evaluation-of-local-extent-of-carcinoma-cervix-is-post-contrast-imaging-needed-in-every-case
#14
Joish Upendra Kumar, Ramireddy Harikiran Reddy, Pallavi Sinha, Niveditha Kodali, Vivek Sreekanth
INTRODUCTION: Carcinoma cervix is widely prevalent among women in developing countries. Post contrast Magnetic Resonance Imaging (MRI) utilising spin echo T1 weighted sequence with fat suppression is widely practiced as part of evaluation of carcinoma cervix. However, it is unclear if such post contrast imaging provides any additional information other than adding to the cost of imaging. AIM: To find accuracy of T1 and T2 weighted non contrast MRI protocol in comparison with post contrast spin echo T1 weighted fat suppressed imaging in evaluating the local extent of the carcinoma cervix...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28646130/congenital-chloride-diarrhea-ccd-a-case-report-of-ccd-suspected-by-prenatal-ultrasonography-and-magnetic-resonance-imaging-mri
#15
Takakazu Kawamura, Tomizou Nishiguchi
BACKGROUND Congenital chloride diarrhea (CCD) is a rare autosomal recessive disorder that is difficult to distinguish from fetal lower intestinal obstruction. A prenatal diagnosis will make a contribution to the prognosis of the newborn. CASE REPORT We report a rare case of congenital chloride diarrhea (CCD) prenatally suspected by ultrasound and MRI. The prenatal ultrasound revealed signs of intestinal dilatation suggesting lower intestinal obstruction. MRI findings also revealed intestinal dilatation that continued from the rectum...
June 24, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28634015/three-dimensional-3d-printed-model-for-deep-infiltrating-endometriosis-die-a-case-report
#16
Mobolaji O Ajao, Nisse V Clark, Tatiana Kelil, Sarah L Cohen, Jon I Einarsson
The combination of a thorough physical exam and imaging with either MRI or pelvic ultrasound are important in pre-operative planning for deep infiltrating endometriosis. Nevertheless, the 2-dimensional rendering of the pathology by imaging does not always accurately represent intra-operative findings. An in-depth topographical relationship and extent of surrounding tissue invasion can be better appreciated from 3-dimensional modeling. A 49 year old patient with history of endometriosis and persistent pain underwent pre-operative imaging with MRI that was consistent with infiltrating endometriosis...
June 17, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28622248/quantitative-perfusion-analysis-of-the-rectum-using-golden-angle-radial-sparse-parallel-magnetic-resonance-imaging-initial-experience-and-comparison-to-time-resolved-angiography-with-interleaved-stochastic-trajectories
#17
Ulrike I Attenberger, Jing Liu, Philipp Riffel, Johannes Budjan, Robert Grimm, Kai T Block, Stefan O Schoenberg, Xiaoying Wang, Daniel Hausmann
OBJECTIVES: Purpose of this study was to compare the quality of perfusion maps obtained from prototypical free-breathing magnetic resonance imaging (MRI) with continuous golden-angle radial sampling and iterative reconstruction (GRASP) to conventional acquisition using time-resolved angiography with interleaved stochastic trajectories (TWIST) in patients with rectal cancer. MATERIAL AND METHODS: Forty cases were included for retrospective analysis. Twenty of the patients received routine multiparametric MRI at 3 T for rectal cancer staging, including perfusion measurement with GRASP or TWIST (10 patients for each technique, including 5 prechemoradiation and 5 postchemoradiation)...
June 16, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28619385/rectum-and-bladder-spacing-in-cervical-cancer-brachytherapy-using-a-novel-injectable-hydrogel-compound
#18
Antonio L Damato, Megan Kassick, Akila N Viswanathan
PURPOSE: The aim of this study was to evaluate injection of a novel hydrogel (TraceIT; Augmenix, Waltham, MA) between the cervix, rectum, and bladder in female cadavers compared with, and in addition to, the current standard of gauze packing, for organ-at-risk sparing in cervical cancer brachytherapy planning. METHODS AND MATERIALS: This brachytherapy cadaver study used T2-weighted MRI and CT imaging to compare three scenarios: (1) gauze packing alone, (2) hydrogel injection placed in the cervical fornices and rectovaginal septum, and (3) gauze packing in conjunction with hydrogel injection...
June 12, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28616724/nd-yag-laser-therapy-for-rectal-and-vaginal-venous-malformations
#19
Lori A Gurien, Richard J Jackson, Michelle M Kiser, Gresham T Richter
BACKGROUND: Limited therapeutic options exist for rectal and vaginal venous malformations (VM). We describe our center's experience using Nd:YAG laser for targeted ablation of abnormal veins to treat mucosally involved pelvic VM. METHODS: Records of patients undergoing non-contact Nd:YAG laser therapy of pelvic VM at a tertiary children's hospital were reviewed. Symptoms, operative findings and details, complications, and outcomes were evaluated. RESULTS: Nine patients (age 0-24) underwent Nd:YAG laser therapy of rectal and/or vaginal VM...
August 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28597000/intraoperative-ultrasound-as-a-screening-modality-for-the-detection-of-liver-metastases-during-resection-of-primary-colorectal-cancer-a-systematic-review
#20
REVIEW
Signe Bremholm Ellebæk, Claus Wilki Fristrup, Michael Bau Mortensen
Colorectal cancer (CRC) is one of the most common cancer diseases worldwide. One in 4 patients with CRC will have a disseminated disease at the time of diagnosis and often in the form of synchronous liver metastases. Studies suggest that up to 30% of patients have non-recognized hepatic metastases during primary surgery for CRC. Intraoperative ultrasonography examination (IOUS) of the liver to detect liver metastases was considered the gold standard during open CRC surgery. Today laparoscopic surgery is the standard procedure, but laparoscopic ultrasound examination (LUS) is not performed routinely...
April 2017: Ultrasound International Open
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