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https://www.readbyqxmd.com/read/28730720/microstructural-white-matter-brain-abnormalities-in-patients-with-idiopathic-fecal-incontinence
#1
J Muthulingam, S Haas, T M Hansen, S Laurberg, L Lundby, H S Jørgensen, A M Drewes, K Krogh, J B Frøkjaer
BACKGROUND: Abnormal central nervous system processing of visceral sensation may be a part of the pathogenesis behind idiopathic fecal incontinence (IFI). Our aim was to characterize brain differences in patients with IFI and healthy controls by means of structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI). METHODS: In 21 female patients with IFI and 15 female healthy controls, whole-brain structural differences in gray matter volume (GMV), cortical thickness, and white matter tracts fractional anisotropy (FA) were quantified...
July 21, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28725582/co-registration-of-mri-and-ultrasound-accuracy-of-targeting-based-on-radiology-pathology-correlation
#2
REVIEW
Win Shun Lai, Jessica G Zarzour, Jennifer B Gordetsky, Soroush Rais-Bahrami
We reviewed the role of multiparametric magnetic resonance imaging (MP-MRI) and methods of MRI guided biopsy including in-bore, cognitive fusion, and software-based fusion. MP-MRI has been developed, optimized, and studied as a means of improving prostate cancer detection beyond the standard evaluation that utilizes digital rectal examinations and serum prostate specific antigen (PSA). MP-MRI has been proven to be an excellent diagnostic imaging modality that improves prostate cancer detection and risk stratification by guiding biopsy samples...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725578/transperineal-vs-transrectal-biopsy-in-mri-targeting
#3
REVIEW
Jeremy Grummet, Lana Pepdjonovic, Sean Huang, Elliot Anderson, Boris Hadaschik
Prostate biopsy is typically performed via either the transrectal or transperineal approach. MRI-targeted biopsy, whether using any of the three options of cognitive fusion, MRI-ultrasound fusion software, or in-bore MRI-guided biopsy, can also be performed via either transrectal or transperineal approaches. As an extension of traditional random prostate biopsy, the transrectal approach is far more commonly used for MRI-targeted biopsy due to its convenience. However, in the context of today's increasing multi-drug resistance of rectal flora, the transperineal approach is being used more often due to its lack of septic complications...
June 2017: Translational Andrology and Urology
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
#4
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/28723750/sphincter-preserving-surgery-for-low-middle-rectal-cancer-can-we-predict-feasibility-with-high-resolution-magnetic-resonance-imaging
#5
Hai-Bin Zhu, Lin Wang, Zi-Yu Li, Xiao-Ting Li, Xiao-Yan Zhang, Ying-Shi Sun
The study proposed to evaluate the feasibility of predicting sphincter-sparing surgery (SSS) preoperatively in low-middle rectal cancer by using magnetic resonance (MR).The study included both retrospective and prospective design. In the retrospective design, the distance from lower edge of tumor to upper margin of the internal sphincter (Dis1) and distance to anal verge (Dis2) were measured on MR, the distance to anal verge recorded by colonoscopy (Dis3) and digital rectal examination (Dis4) were also obtained...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722086/-current-surgical-strategy-of-locally-recurrent-rectal-cancer
#6
Xin Wang, Yong Jiang
The incidence of locally recurrent rectal cancer (LRRC) is less than 10% following treatment for primary rectal cancer, while LRRC usually has serious symptoms and a very low survival rate when lack of treatment. For further efficacy improvement of LRRC operation, recent research topics include preoperative precise evaluation, correct decision, reasonable individual treatment by multidisciplinary collaboration. Surgery remains the only option for potential cure. Studies show R0 resection is the most important prognostic factor...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28719629/multiparametric-11c-acetate-positron-emission-tomography-magnetic-resonance-imaging-in-the-assessment-and-staging-of-prostate-cancer
#7
Stephan H Polanec, Piotr Andrzejewski, Pascal A T Baltzer, Thomas H Helbich, Alexander Stiglbauer, Dietmar Georg, Georgios Karanikas, Martin Susani, Wolfgang Wadsak, Markus Margreiter, Markus Mitterhauser, Peter Brader, Katja Pinker
BACKGROUND: The aim of this study was to evaluate whether MP [11C]Acetate PET-MRI enables an accurate differentiation of benign and malignant prostate tumors as well as local and distant staging. MATERIALS AND METHODS: Fifty-six consecutive patients fulfilling the following criteria were included in this IRB-approved prospective study: elevated PSA levels or suspicious findings at digital rectal examination or TRUS; and histopathological verification. All patients underwent MP [11C]Acetate PET-MRI of the prostate performed on separate scanners with PET/CT using [11C]Acetate and 3T MP MR imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28717704/significance-of-magnetic-resonance-imaging-assessed-tumor-response-for-locally-advanced-rectal-cancer-treated-with-preoperative-long-course-chemoradiation
#8
Mohamed Salah Fayaz, Gerges Attia Demian, Wael Moftah Fathallah, Heba El-Sayed Eissa, Mustafa Shawki El-Sherify, Sadeq Abozlouf, Thomas George, Suzanne Mona Samir
PURPOSE: To study the predictive and prognostic value of magnetic resonance imaging (MRI)-assessed tumor response after long-course neoadjuvant therapy for locally advanced rectal cancer. METHODS: This study included 79 patients who had T3 or T4 and/or N+ rectal cancer treated with long-course neoadjuvant chemoradiation. MRI-assessed tumor regression grade (mrTRG) was assessed in 64 patients. MRIs were reviewed by the study radiologist. Surgical and pathologic reports for those who underwent surgery were reviewed...
August 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28706185/deep-learning-for-fully-automated-localization-and-segmentation-of-rectal-cancer-on-multiparametric-mr
#9
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/28703886/dual-energy-ct-a-possible-new-method-to-assess-regression-of-rectal-cancers-after-neoadjuvant-treatment
#10
Issam Al-Najami, Henrik C Drue, Robert Steele, Gunnar Baatrup
BACKGROUND AND OBJECTIVES: The measurement of tumor regression after neoadjuvant oncological treatment has gained increasing interest because it has a prognostic value and because it may influence the method of treatment in rectal cancer. The assessment of tumor regression remains difficult and inaccurate with existing methods. Dual Energy Computed Tomography (DECT) enables qualitative tissue differentiation by simultaneous scanning with different levels of energy. We aimed to assess the feasibility of DECT in quantifying tumor response to neoadjuvant therapy in loco-advanced rectal cancer...
July 13, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28694669/magnetic-resonance-imaging-may-predict-deep-remission-in-patients-with-perianal-fistulizing-crohn-s-disease
#11
Lucie Thomassin, Laura Armengol-Debeir, Cloé Charpentier, Valerie Bridoux, Edith Koning, Guillaume Savoye, Céline Savoye-Collet
AIM: To evaluate the imaging course of Crohn's disease (CD) patients with perianal fistulas on long-term maintenance anti-tumor necrosis factor (TNF)-α therapy and identify predictors of deep remission. METHODS: All patients with perianal CD treated with anti-TNF-α therapy at our tertiary care center were evaluated by magnetic resonance imaging (MRI) and clinical assessment. Two MR examinations were performed: at initiation of anti-TNF-α treatment and then at least 2 years after...
June 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28690775/value-of-multi-disciplinary-input-into-laparoscopic-management-of-rectal-cancer-an-observational-study
#12
Pawan Kumar Dhruva Rao, Sooriyaratchige Pradeep Manjula Peiris, Seema Safia Arif, Rhodri A Davies, Ashraf Gergies Masoud, Puthucode Narayanan Haray
AIM: To assess the impact of multi-disciplinary teams (MDTs) management in optimising the outcome for rectal cancers. METHODS: We undertook a retrospective review of a prospectively maintained database of patients with rectal cancers (defined as tumours ≤ 15 cm from anal verge) discussed at our MDT between Jan 2008 and Jan 2011. The data was validated against the national database to ensure completeness of dataset. The clinical course and follow-up data was validated using the institution's electronic patient records...
June 27, 2017: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28685744/endorectal-fusion-imaging-a-description-of-a-new-technique
#13
Andre Ignee, Yi Dong, Gudrun Schuessler, Ulrich Baum, Christoph F Dietrich
BACKGROUND: Fusion imaging is an accepted method in abdominal imaging allowing a simultaneous display of reference imaging with a live ultrasound (US) investigation. For prostate cancer, promising results have been published for endorectal US (ERUS)-guided biopsy of suspicious lesions in magnetic resonance imaging (MRI). To our knowledge, no other indication for the fusion of ERUS with MRI has been reported so far. METHODS: We report on three patients scheduled for ERUS due to anorectal fistulae after treatment (n = 2) or rectal carcinoma (n = 1), which were scheduled for real-time virtual onography (RVS), a method for the fusion of MRI imaging with US...
July 6, 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28676107/study-protocol-multi-parametric-magnetic-resonance-imaging-for-therapeutic-response-prediction-in-rectal-cancer
#14
Trang Thanh Pham, Gary Liney, Karen Wong, Robba Rai, Mark Lee, Daniel Moses, Christopher Henderson, Michael Lin, Joo-Shik Shin, Michael Bernard Barton
BACKGROUND: Response to neoadjuvant chemoradiotherapy (CRT) of rectal cancer is variable. Accurate imaging for prediction and early assessment of response would enable appropriate stratification of management to reduce treatment morbidity and improve therapeutic outcomes. Use of either diffusion weighted imaging (DWI) or dynamic contrast enhanced (DCE) imaging alone currently lacks sufficient sensitivity and specificity for clinical use to guide individualized treatment in rectal cancer...
July 4, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28674583/-scrotal-fistulas-revealing-mucinous-adenocarcinoma-of-the-scrotum-about-a-case
#15
Abdelilah El Alaoui, Hicham El Boté, Oussama Ziouani, Oussman Dembele, Hachem El Sayegh, Ali Iken, Lounis Benslimane, Yassine Nouini
Scrotales fistulas are rare and often represent secondary lesions of tuberculosis. Mucinous adenocarcinomas are tumors containing at least 50% of extracellular mucus. They occur most commonly in the rectosigmoid; scrotal location is rare. We report the case of a 54-year old patient, with no particular past medical history, with secondary mucinous adenocarcinoma of the scrotum revealed by scrotal fistulas. The patient had suffered from recurrent scrotal fistulas for two years, with no other associated signs...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28667480/mri-surveillance-for-the-detection-of-local-recurrence-in-rectal-cancer-after-transanal-endoscopic-microsurgery
#16
Britt J P Hupkens, Monique Maas, Milou H Martens, Willem M L L G Deserno, Jeroen W A Leijtens, Patty J Nelemans, Frans C H Bakers, Doenja M J Lambregts, Geerard L Beets, Regina G H Beets-Tan
OBJECTIVES: To evaluate diagnostic performance of follow-up MRI for detection of local recurrence of rectal cancer after transanal endoscopic microsurgery (TEM). METHODS: Between January 2006 and February 2014, 81 patients who underwent TEM were included. Two expert readers (R1 and R2), independently evaluated T2-weighted (T2W) MRI and diffusion-weighted (DWI) MRI for the detection of local recurrence, retrospectively, and recorded confidence on a five-point scale...
June 30, 2017: European Radiology
https://www.readbyqxmd.com/read/28667392/-multiparametric-mri-of-the-prostate-important-radiological-findings-for-urologists
#17
REVIEW
Heinz-Peter Schlemmer
CLINICAL/METHODICAL ISSUE: High prevalence of prostate cancer with multifocality and biological heterogeneity. Insufficient conventional urological diagnostics. Discrimination between significant and insignificant cancer needed. STANDARD DIAGNOSTIC METHODS: Digital rectal examination, prostate-specific antigen (PSA) serum level, systematic transrectal ultrasound (TRUS)-guided prostate biopsy. METHODICAL INNOVATIONS: Multiparametric magnetic resonance imaging (mpMRI) including T2-weighted (T2w), diffusion-weighted and dynamic contrast-enhanced MRI according to the prostate imaging reporting and data system (PIRADS), MR-targeted biopsy, most frequently MR/TRUS image fusion biopsy...
June 30, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28660992/all-that-glitters-on-pet-is-not-cancer-18f-deoxy-glucose-avidity-versus-tumor-biology-pituitary-incidentaloma-in-a-survivor-of-two-previous-unrelated-malignancies
#18
Dragana Miljić, Emilija Manojlović-Gačić, Milica Skender-Gazibara, Toplica Milojević, Vojislav Bogosavljević, Nebojša Kozarević, Nebojša Petrović, Marko Stojanović, Sandra Pekić, Mirjana Doknić, Milan Petakov, Vera Popović
INTRODUCTION: 18F-deoxy-glucose positron emission tomography combined with computed tomography (18F-FDG PET/CT) is routinely used in the detection of malignant disease based on the property of malignant cells to fuel their growth and replication by increased glucose uptake. Malignant lesions are rare in the sellar region, while pituitary adenomas are the most common pathology. These are benign neoplasms with insidious onset and low proliferation activity, and therefore are only exceptionally detected by 18F-FDG PET/CT...
2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28653753/the-development-of-a-magnetic-resonance-imaging-index-for-fistulising-crohn-s-disease
#19
M A Samaan, C A J Puylaert, B G Levesque, G Y Zou, L Stitt, S A Taylor, L M Shackelton, M K Vandervoort, R Khanna, C Santillan, J Rimola, P Hindryckx, C Y Nio, W J Sandborn, G D'Haens, B G Feagan, V Jairath, J Stoker
BACKGROUND: Magnetic resonance imaging (MRI) is the gold standard for assessment of perianal fistulising Crohn's disease (CD). The Van Assche index is the most commonly used MRI fistula index. AIMS: To assess the reliability of the Van Assche index, and to modify the instrument to improve reliability and create a novel index for fistulising CD. METHODS: A consensus process developed scoring conventions for existing Van Assche index component items and new items...
June 27, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28647399/quantitative-imaging-outperforms-molecular-markers-when-predicting-response-to-chemoradiotherapy-for-rectal-cancer
#20
Ines Joye, Annelies Debucquoy, Christophe M Deroose, Vincent Vandecaveye, Eric Van Cutsem, Albert Wolthuis, André D'Hoore, Xavier Sagaert, Mu Zhou, Olivier Gevaert, Karin Haustermans
BACKGROUND AND PURPOSE: To explore the integration of imaging and molecular data for response prediction to chemoradiotherapy (CRT) for rectal cancer. MATERIAL AND METHODS: Eighty-five rectal cancer patients underwent preoperative CRT. (18)F-FDG PET/CT and diffusion-weighted imaging (DWI) were acquired before (TP1) and during CRT (TP2) and prior to surgery (TP3). Inflammatory cytokines and gene expression were analysed. Tumour response was defined as ypT0-1N0. Multivariate models were built combining the obtained parameters...
June 21, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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