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https://www.readbyqxmd.com/read/28629461/cost-effectiveness-of-lung-cancer-screening-and-treatment-methods-a-systematic-review-of-systematic-reviews
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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 6, 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
#7
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
https://www.readbyqxmd.com/read/28503955/new-insights-into-the-earliest-stages-of-colorectal-tumorigenesis
#8
Chelsie K Sievers, William M Grady, Richard B Halberg, Perry J Pickhardt
Tumors in the large intestine have been postulated to arise via a stepwise accumulation of mutations, a process that takes up to 20 years. Recent advances in lineage tracing and DNA sequencing, however, are revealing new evolutionary models that better explain the vast amount of heterogeneity observed within and across colorectal tumors. Areas covered: A review of the literature supporting a novel model of colorectal tumor evolution was conducted. The following commentary examines the basic science and clinical evidence supporting a modified view of tumor initiation and progression in the colon...
May 26, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28470438/a-novel-physical-colonoscopy-simulator-based-on-analysis-of-data-from-computed-tomography-colonography
#9
Katsuhisa Noda, Takatoshi Kitada, Yasumoto Suzuki, Hugh Shunsuke Colvin, Taishi Hata, Tsunekazu Mizushima
PURPOSE: Laparoscopic surgery is now practiced widely because of its lower postoperative morbidity. As flexible endoscopy during laparoscopic surgery minimizes surgical trauma further, training in endoscopy will become more important for surgeons. Thus, we designed a physical simulator, the Noda-Kitada-Suzuki (NKS) model, which could provide the more realistic insertion of a colonoscope. METHODS: We designed a colonoscopy simulator, based on information from computed tomography colonography scans of the anatomy and kinetic properties of the colon and rectum...
May 3, 2017: Surgery Today
https://www.readbyqxmd.com/read/28447326/ct-colonography-role-in-fobt-based-screening-programs-for-colorectal-cancer
#10
REVIEW
Lapo Sali, Grazia Grazzini, Mario Mascalchi
Computed tomographic colonography (CTC) is a minimally invasive imaging examination for the colon, and is safe, well tolerated and accurate for the detection of colorectal cancer (CRC) and advanced adenoma. While the role of CTC as a primary test for population screening of CRC is under investigation, the fecal occult blood test (FOBT) has been recommended for population screening of CRC in Europe. Subjects with positive FOBT are invited to undergo total colonoscopy, which has some critical issues, such as suboptimal compliance, contraindications and the possibility of an incomplete exploration of the colon...
April 26, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28390559/optimal-timing-for-faecal-tagging-in-same-day-ct-colonography-for-patients-with-failed-colonoscopy
#11
Sushant Saluja, Grazvydas Gaikstas, Milan Sapundzieski
AIM: Same day CT colonography (CTC) for incomplete colonoscopy should be considered to avoid the need for further bowel preparation. Oral administration of contrast is essential for optimal colonic analysis of the CTC. Our aim was to determine the optimal time for giving contrast to people who underwent same day CTC after failed colonoscopy. METHODS: Data was extracted from the Trust database to identify the number of CTC referrals following failed or incomplete colonoscopy within the last 5 years, and the reason for their referral...
May 2017: Radiography
https://www.readbyqxmd.com/read/28379020/-contribution-of-ct-colonography-to-clinical-practice
#12
Lukáš Lambert, Lucie Šimáková
CT colonography is a CT examination focused on the detection of colonic polyps and masses. Its most common indications include incomplete optical colonoscopy and generally personal preference in symptomatic or frail patients. CT colonography has a diagnostic yield similar to optical colonoscopy. It is less demanding for the patient, has shorter examination times, lower rates of adverse effects (including bowel perforation) and allows limited evaluation of extracolonic structures. In 10-15 % of asymptomatic patients, optical colonoscopy is needed if either a colonic polyp or mass is detected...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28356203/variation-in-patients-travel-times-among-imaging-examination-types-at-a-large-academic-health-system
#13
Andrew B Rosenkrantz, Yu Liang, Richard Duszak, Michael P Recht
RATIONALE AND OBJECTIVES: Patients' willingness to travel farther distances for certain imaging services may reflect their perceptions of the degree of differentiation of such services. We compare patients' travel times for a range of imaging examinations performed across a large academic health system. MATERIALS AND METHODS: We searched the NYU Langone Medical Center Enterprise Data Warehouse to identify 442,990 adult outpatient imaging examinations performed over a recent 3...
March 27, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28333541/extracolonic-findings-at-screening-ct-colonography-prevalence-benefits-challenges-and-opportunities
#14
B Dustin Pooler, David H Kim, Perry J Pickhardt
OBJECTIVE: Extracolonic findings at screening CT colonography (CTC) represent imaging findings incidentally detected outside the colon and rectum. Confusion regarding rates reported in the literature fuels controversy over the relative benefits versus harms of extracolonic findings. CONCLUSION: From an evidence-based approach, this article reviews the prevalence and benefits of and challenges raised by extracolonic findings, as well as opportunities to further leverage the effect of screening CTC...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28281908/increasing-navigation-speed-at-endoluminal-ct-colonography-reduces-colonic-visualization-and-polyp-identification
#15
Andrew A Plumb, Peter Phillips, Graeme Spence, Susan Mallett, Stuart A Taylor, Steve Halligan, Thomas Fanshawe
Purpose To investigate the effect of increasing navigation speed on the visual search and decision making during polyp identification for computed tomography (CT) colonography Materials and Methods Institutional review board permission was obtained to use deidentified CT colonography data for this prospective reader study. After obtaining informed consent from the readers, 12 CT colonography fly-through examinations that depicted eight polyps were presented at four different fixed navigation speeds to 23 radiologists...
March 10, 2017: Radiology
https://www.readbyqxmd.com/read/28270290/application-of-low-tube-voltage-70-kv-and-advanced-modeled-iterative-reconstruction-in-the-third-generation-dual-source-ct-to-ct-colonography
#16
Jingjuan Liu, Weidong Pan, Huadan Xue, Bin Li, Xuan Wang, Hao Sun, Yun Wang, Wei Liu, Zhengyu Jin
Objective To explore the feasibility of reducing radiation dose of CT colonography (CTC) while preserving image quality using the third-generation dual-source CT at 70 kV tube voltage with advanced modeled iterative reconstruction (ADMIRE). Methods This prospective study consecutively included 53 patients. All patients underwent CTC at 120 kV in supine position with filtered back projection reconstruction and at 70 kV in prone position with ADMIRE with the same scan range. Radiation dose and image quality were compared between these two protocols...
February 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28256902/the-role-of-colonoscopy-and-ct-colonography-in-patients-presenting-with-symptoms-of-constipation
#17
COMPARATIVE STUDY
Kumaran Ratnasingham, Tammy Lo, Karim Jamal, Lavanya Varatharajan, Yasmin Tabbakh, Husein Kaderbhai, Nicholas J West
OBJECTIVE: There is controversy whether constipation as a primary presenting complaint is an indication for diagnostic colonoscopy. CT colonography (CTC) is a less invasive and more acceptable alternative. We compared the completion and sensitivity of colonoscopy with CTC in patients who presented with the primary symptom of constipation. METHODS: A retrospective study was conducted which examined the first 100 colonoscopies and 100 CTCs carried out for the primary symptom of constipation from June 2012 to December 2013...
May 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28243050/appendiceal-mucocele-due-to-mucinous-adenoma-diagnosed-by-computed-tomography-colonography
#18
Nicola Flor, Gianpaolo Carrafiello
No abstract text is available yet for this article.
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28222812/prevalence-and-risk-factors-for-post-investigation-colorectal-cancer-interval-cancer-after-computed-tomographic-colonography-protocol-for-a-systematic-review
#19
Andrew A Plumb, Anu Obaro, Thomas Fanshawe, Ulysses S Torres, Rachel Baldwin-Cleland, Steve Halligan, David Burling
BACKGROUND: Colorectal cancer (CRC) is a common and important disease. There are different tests for diagnosis, one of which is computed tomographic colonography (CTC). No test is perfect, and patients with normal CTC may subsequently develop CRC (either because it was overlooked originally, or because it has developed in the interim). This is termed post-investigation colorectal cancer (PICRC) or "interval cancer". How frequently this occurs after CTC is not known. The purpose of this systematic review and meta-analysis is to use the primary literature to estimate the PICRC rate after CTC, and explore associated factors...
February 21, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28133138/-case-of-laparoscopic-sigmoidectomy-for-a-patient-with-persistent-descending-mesocolon
#20
Shu Arai, Yoji Nishimura, Shinsuke Kazama, Yusuke Nishizawa, Hideki Ishikawa, Yoshihiro Mori, Takashi Takenoya, Michitoshi Takano
A 65-year-old man with bloody stools was diagnosed with sigmoid colon cancer on colonoscopy. A preoperative barium enema and a computed tomography colonography scan showed a medial displacement of his descending colon. The preoperative clinical diagnosis was stage cT1 colon cancer, N0, M0, cStage I . Laparoscopic sigmoidectomy was performed. We found adhesions between the descending colon mesentery and the pelvic wall, and noted that the descending colon was not fused with the retroperitoneum and was shifted to the midline...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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