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https://www.readbyqxmd.com/read/28814206/computed-tomography-colonography-underutilised-in-australia
#1
Richard M Mendelson, Tom Sutherland, Andrew Little
No abstract text is available yet for this article.
August 21, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28812132/bowel-preparation-in-ct-colonography-is-diet-restriction-necessary-a-randomised-trial-dietsan
#2
Davide Bellini, Domenico De Santis, Damiano Caruso, Marco Rengo, Riccardo Ferrari, Tommaso Biondi, Andrea Laghi
OBJECTIVES: To investigate whether diet restriction affects quality of colon cleansing and patient tolerance during reduced bowel preparation for CT colonography (CTC). METHODS: Asymptomatic and symptomatic patients were enrolled in this pragmatic, single-centre, randomised trial. All patients were randomly assigned (1:1 ratio, blocks of ten) to receive a reduced bowel preparation and faecal tagging with (Diet-Restriction-Group [DR]) or without (No-Diet-Restriction-Group [NDR]) dietary restriction...
August 10, 2017: European Radiology
https://www.readbyqxmd.com/read/28753031/computer-aided-detection-of-colorectal-polyps-at-ct-colonography-prospective-clinical-performance-and-third-party-reimbursement
#3
Timothy J Ziemlewicz, David H Kim, J Louis Hinshaw, Meghan G Lubner, Jessica B Robbins, Perry J Pickhardt
OBJECTIVE: We assessed the initial clinical performance and third-party reimbursement rates of supplementary computer-aided detection (CAD) at CT colonography (CTC) for detecting colorectal polyps 6 mm or larger in routine clinical practice. MATERIALS AND METHODS: We retrospectively assessed the prospective clinical performance of a U.S. Food and Drug Administration-approved CAD system in second-reader mode in 347 consecutive adults (mean age, 57.6 years; 205 women, 142 men) undergoing CTC evaluation over a 5-month period...
June 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28734142/differences-between-genders-in-colorectal-morphology-on-ct-colonography-using-a-quantitative-approach-a-pilot-study
#4
Charles N Weber, Jason A Poff, Anna S Lev-Toaff, Marc S Levine, Hanna M Zafar
PURPOSE: To explore quantitative differences between genders in morphologic colonic metrics and determine metric reproducibility. METHODS: Quantitative colonic metrics from 20 male and 20 female CTC datasets were evaluated twice by two readers; all exams were performed after incomplete optical colonoscopy. Intra-/inter-reader reliability was measured with intraclass correlation coefficient (ICC) and concordance correlation coefficient (CCC). RESULTS: Women had overall decreased colonic volume, increased tortuosity and compactness and lower sigmoid apex height on CTC compared to men (p<0...
July 15, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28724866/effect-of-reduced-tube-voltage-on-diagnostic-accuracy-of-ct-colonography
#5
Yoshihiro Futamata, Tomoaki Koide, Riku Ihara
The normal tube voltage in computed tomography colonography (CTC) is 120 kV. Some reports indicate that the use of a low tube voltage (lower than 120 kV) technique plays a significant role in reduction of radiation dose. However, to determine whether a lower tube voltage can reduce radiation dose without compromising diagnostic accuracy, an evaluation of images that are obtained while maintaining the volume CT dose index (CTDIvol) is required. This study investigated the effect of reduced tube voltage in CTC, without modifying radiation dose (i...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28702886/comparison-of-transvaginal-sonography-and-computed-tomography-colonography-with-contrast-media-and-urographic-phase-for-diagnosing-deep-infiltrating-endometriosis-of-the-posterior-compartment-of-the-pelvis-a-pilot-study
#6
Letizia Zannoni, Simona Del Forno, Francesca Coppola, Dimitris Papadopoulos, Domenico Valerio, Rita Golfieri, Giacomo Caprara, Roberto Paradisi, Renato Seracchioli
PURPOSE: To compare the diagnostic accuracy of transvaginal sonography (TVS) and computed tomography-colonography with contrast media and urographic phase (CTCU) in the preoperative detection of deep infiltrating endometriosis (DIE). MATERIALS AND METHODS: Forty-seven patients with clinical suspicion of DIE underwent preoperative TVS and CTCU. Imaging data were compared with histopathologic analysis. Sensitivity, specificity, positive and negative predictive values and test accuracies of the two modalities were calculated...
July 12, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28696184/insurance-coverage-for-ct-colonography-screening-impact-on-overall-colorectal-cancer-screening-rates
#7
Maureen A Smith, Jennifer M Weiss, Aaron Potvien, Jessica R Schumacher, Ronald E Gangnon, David H Kim, Lauren A Weeth-Feinstein, Perry J Pickhardt
Purpose To compare overall colorectal cancer (CRC) screening rates for patients who were eligible and due for CRC screening and who were with and without insurance coverage for computed tomographic (CT) colonography for CRC screening. Materials and Methods The institutional review board approved this retrospective cohort study, with a waiver of consent. This study used longitudinal electronic health record data from 2005 through 2010 for patients managed by one of the largest multispecialty physician groups in the United States...
July 11, 2017: Radiology
https://www.readbyqxmd.com/read/28689518/colon-cancer-screening-is-it-time-yet
#8
EDITORIAL
Hadi Bhurgri, Sami Samiullah
The month of March is dedicated to Colon Cancer Awareness. Worldwide, colorectal cancer (CRC) incidence has been on the rise. It is currently the third most common cancer in men (746,000 cases, 10.0% of the total) and the second in women (614,000 cases, 9.2% of the total).1 Arecent meta-analysis reported a 61% risk reduction in CRC incidence with colonoscopy.2 Unlike screening programs for breast and prostate cancers, not only has CRC screening reduced mortality from colon cancer and detected early CRC, it has also decreased the incidence of CRC through detection and removal of pre-cancerous lesions...
June 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28684185/transabdominal-ultrasound-colonography-for-detection-of-colorectal-neoplasms-initial-clinical-experience
#9
Jin-Ya Liu, Li-Da Chen, Jian-Bo Xu, Hui Wu, Jin-Ning Ye, Xin-Hua Zhang, Xiao-Yan Xie, Wei Wang, Ming-De Lu
We investigated the feasibility of using ultrasound colonography (USC) to visualize the healthy colon and rectum and detect colorectal polyps. Eight healthy volunteers underwent USC after standard bowel preparation. The feasibility and image quality of USC in different segments were evaluated. Then, USC was conducted on eight patients with known colonic neoplasms using colonoscopy as the reference standard. For volunteers, USC examinations were successfully performed on four (50.0%) ascending, three (37.5%) transverse and eight (100%) descending colons, as well as all sigmoid colons and rectums...
July 3, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28681075/cost-analysis-of-colorectal-cancer-screening-with-ct-colonography-in-italy
#10
Paola Mantellini, Giuseppe Lippi, Lapo Sali, Grazia Grazzini, Silvia Delsanto, Beatrice Mallardi, Massimo Falchini, Guido Castiglione, Francesca Maria Carozzi, Mario Mascalchi, Stefano Milani, Leonardo Ventura, Marco Zappa
OBJECTIVE: Unit costs of screening CT colonography (CTC) can be useful for cost-effectiveness analyses and for health care decision-making. We evaluated the unit costs of CTC as a primary screening test for colorectal cancer in the setting of a randomized trial in Italy. METHODS: Data were collected within the randomized SAVE trial. Subjects were invited to screening CTC by mail and requested to have a pre-examination consultation. CTCs were performed with 64- and 128-slice CT scanners after reduced or full bowel preparation...
July 5, 2017: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/28674967/adverse-events-during-ct-colonography-for-screening-diagnosis-and-preoperative-staging-of-colorectal-cancer-a-japanese-national-survey
#11
Koichi Nagata, Ken Takabayashi, Takaaki Yasuda, Michiaki Hirayama, Shungo Endo, Ryoichi Nozaki, Takenobu Shimada, Hidenori Kanazawa, Masanori Fujiwara, Norihito Shimizu, Tatema Iwatsuki, Teruaki Iwano, Hiroshi Saito
OBJECTIVES: To retrospectively evaluate the frequencies and magnitudes of adverse events associated with computed tomographic colonography (CTC) for screening, diagnosis and preoperative staging of colorectal cancer. METHODS: A Japanese national survey on CTC was administered by use of an online survey tool in the form of a questionnaire. The questions covered mortality, colorectal perforation, vasovagal reaction, total number of examinations, and examination procedures...
July 3, 2017: European Radiology
https://www.readbyqxmd.com/read/28647989/-accuracy-of-ct-colonography-for-the-detection-of-colorectal-neoplasm-a-subgroup-meta-analysis
#12
H H Yu, H Y Huang, Y S Jiang, C Zhu, C G Guo, M Dai, X J Xing, J F Shi
Objective: To assess the accuracy of computed tomographic colonography (CTC) for detection of colorectal neoplasm. Methods: Publications prior to January 2016 from the Medline, Embase, CNKI, WANFANG, and VIP literature databases were systematically reviewed. A QUADAS checklist was used to assess the quality of the studies. According to the sizes of tumor (≥6 mm or ≥10 mm), diagnostic test accuracy indexes (area under the curve, sensitivity and specific) were pooled and stratified. Spearman correlation and curve of summary receiver operating characteristic (SROC) were applied to comprehensively assess the threshold effect...
June 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28647771/detection-of-potentially-relevant-extracolonic-and-colorectal-findings-at-ct-colonography-in-a-low-risk-symptomatic-patient-population
#13
F R S Netz, P J Pickhardt, M L G Janssen Heijnen, P C G Simons
PURPOSE: CT colonography (CTC) is a widely accepted examination tool for detection of colorectal lesions but evidence of the proportions of relevant extracolonic findings (ECF) in a large symptomatic but still relatively low-risk cohort is lacking, as well as their relationship to symptoms, age, and sex. METHODS: All patients (n = 3208) with colorectal symptoms, imaged between January 2007 and September 2016 with first-time CTC, were retrospectively selected. The majority (96...
June 24, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28629461/cost-effectiveness-of-lung-cancer-screening-and-treatment-methods-a-systematic-review-of-systematic-reviews
#14
Farbod Ebadifard Azar, Saber Azami-Aghdash, Fatemeh Pournaghi-Azar, Alireza Mazdaki, Aziz Rezapour, Parvin Ebrahimi, Negar Yousefzadeh
BACKGROUND: Due to extensive literature in the field of lung cancer and their heterogeneous results, the aim of this study was to systematically review of systematic reviews studies which reviewed the cost-effectiveness of various lung cancer screening and treatment methods. METHODS: In this systematic review of systematic reviews study, required data were collected searching the following key words which selected from Mesh: "lung cancer", "lung oncology", "lung Carcinoma", "lung neoplasm", "lung tumors", "cost- effectiveness", "systematic review" and "Meta-analysis"...
June 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28600072/colorectal-cancer-screening-recommendations-for-physicians-and-patients-from-the-u-s-multi-society-task-force-on-colorectal-cancer
#15
Douglas K Rex, C Richard Boland, Jason A Dominitz, Francis M Giardiello, David A Johnson, Tonya Kaltenbach, Theodore R Levin, David Lieberman, Douglas J Robertson
This document updates the colorectal cancer (CRC) screening recommendations of the U.S. Multi-Society Task Force of Colorectal Cancer (MSTF), which represents the American College of Gastroenterology, the American Gastroenterological Association, and The American Society for Gastrointestinal Endoscopy. CRC screening tests are ranked in 3 tiers based on performance features, costs, and practical considerations. The first-tier tests are colonoscopy every 10 years and annual fecal immunochemical test (FIT). Colonoscopy and FIT are recommended as the cornerstones of screening regardless of how screening is offered...
June 2, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28581195/minimal-preparation-ct-a-literature-review-of-a-minimally-invasive-imaging-technique-for-colorectal-cancer-in-a-frail-aged-population
#16
REVIEW
Andrew D Csillag, Anna R Quirk, Michael V Chan, Lloyd J Ridley
Colorectal cancer (CRC) is a common malignancy with increased incidence in the elderly. When CRC is suspected, patients are typically evaluated with optical colonoscopy (OC) or CT Colonography (CTC). Unfortunately, in the frail and elderly patient, these investigations can be difficult to perform and are often not tolerated. Minimal preparation computed tomography (MPCT) is a CT technique to evaluate the colon. Although protocols vary, typically, no preparation is required apart from administration of oral contrast for faecal tagging...
June 5, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28573348/measurement-of-smaller-colon-polyp-in-ct-colonography-images-using-morphological-image-processing
#17
K N Manjunath, P C Siddalingaswamy, G K Prabhu
PURPOSE: Automated measurement of the size and shape of colon polyps is one of the challenges in Computed tomography colonography (CTC). The objective of this retrospective study was to improve the sensitivity and specificity of smaller polyp measurement in CTC using image processing techniques. METHODS: A domain knowledge-based method has been implemented with hybrid method of colon segmentation, morphological image processing operators for detecting the colonic structures, and the decision-making system for delineating the smaller polyp-based on a priori knowledge...
June 1, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28570580/ct-volumetric-measurement-of-colorectal-cancer-helps-predict-tumor-staging-and-prognosis
#18
Jin Young Park, Se Hyung Kim, Sang Min Lee, Jeong Sub Lee, Joon Koo Han
PURPOSE: To evaluate feasibility of CT colonography (CTC) volumetry of colorectal cancer (CRC) and its correlation with disease stage and patients' survival. MATERIALS AND METHODS: CTC volumetry was performed for 126 patients who underwent preoperative CTC. Reproducibility of tumor volume (Tvol) between two readers was assessed. One-way ANOVA and ROC analysis evaluated correlation between Tvol and pTNM staging. ROC analysis compared diagnostic performance to predict pTNM staging between Tvol and radiologist...
2017: PloS One
https://www.readbyqxmd.com/read/28555630/colorectal-cancer-screening-recommendations-for-physicians-and-patients-from-the-u-s-multi-society-task-force-on-colorectal-cancer
#19
REVIEW
Douglas K Rex, C Richard Boland, Jason A Dominitz, Francis M Giardiello, David A Johnson, Tonya Kaltenbach, Theodore R Levin, David Lieberman, Douglas J Robertson
This document updates the colorectal cancer (CRC) screening recommendations of the U.S. Multi-Society Task Force of Colorectal Cancer (MSTF), which represents the American College of Gastroenterology, the American Gastroenterological Association, and The American Society for Gastrointestinal Endoscopy. CRC screening tests are ranked in 3 tiers based on performance features, costs, and practical considerations. The first-tier tests are colonoscopy every 10 years and annual fecal immunochemical test (FIT). Colonoscopy and FIT are recommended as the cornerstones of screening regardless of how screening is offered...
July 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28522955/colonic-dysmotility-and-morphological-abnormality-frequently-detected-in-japanese-patients-with-irritable-bowel-syndrome
#20
Takeshi Mizukami, Shinya Sugimoto, Tatsuhiro Masaoka, Hidekazu Suzuki, Takanori Kanai
BACKGROUND/AIMS: Colonoscopy and computed tomography (CT) are used primarily to exclude organic diseases in patients with irritable bowel syndrome (IBS), rather than to assess the pathophysiology of IBS. We aimed to evaluate colonic dysmotility and morphology in Japanese patients with IBS. METHODS: One hundred eighty-four patients with IBS and 49 asymptomatic controls who underwent colonoscopy in combination with CT colonography or barium enema were retrospectively reviewed between 2008 and 2012...
April 2017: Intestinal Research
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