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Hannah Ojidu, Hansa Palmer, Jakub Lewandowski, James Hampton, Tony Blakeborough, Owen Epstein, Mark E McAlindon
BACKGROUND: Less invasive alternatives to optical colonoscopy (OC) may improve patient compliance with investigation, but study of patient preference is limited. OBJECTIVES: The aims of this study were to determine patient tolerance and acceptability of OC, computed tomography colonography (CTC) and colon capsule endoscopy (CCE) and also to determine the choice of investigation made by fully informed members of the lay public. PATIENTS AND METHODS: Patients assigned a Gloucester Comfort Score (GCS, 1-5; as did endoscopists), an overall test experience score (visual analogue scale, 0-10) and completed a 'Friends and Family Test' following OC, CTC or CCE...
February 16, 2018: European Journal of Gastroenterology & Hepatology
Stuart A Taylor, Christian von Wagner
No abstract text is available yet for this article.
March 2018: Radiology
David H Kim
No abstract text is available yet for this article.
February 19, 2018: Abdominal Radiology
Judy Yee, Elizabeth McFarland
A better understanding of the risks and benefits of extracolonic findings and radiation dose will aid in the safe and proper implementation of CT colonography in clinical practice. The majority of extracolonic findings in screening patients are benign and can be ignored by referring physicians. Radiologists also need to be responsible in reporting extracolonic findings. Referring providers must be knowledgeable about the theoretic risks and controversies regarding the use of ionizing radiation. Screening CT colonography imparts a low-level of radiation to patients that is equivalent or less than annual background dose...
February 15, 2018: Abdominal Radiology
Kevin J Chang, David H Kim
CT colonography (CTC) has demonstrated equivalent accuracy to optical colonoscopy in the detection of clinically relevant polyps and tumors but this is only possible when technique is optimized. The two most important features of a high-quality CTC are a well-prepared colon and a distended colon. This article will discuss the dietary, bowel preparation, and fecal/fluid tagging options to best prepare the colon. Strategies to optimally distend the colon will also be discussed. CT scan techniques including patient positioning and radiation dose optimization will be reviewed...
February 15, 2018: Abdominal Radiology
Jie-Bin Lew, D James, B St John, Finlay A Macrae, Jon D Emery, Hooi C Ee, Mark A Jenkins, Emily He, Paul Grogan, Michael Caruana, Diana Sarfati, Marjolein Je Greuter, Veerle Mh Coupé, Karen Canfell
The Australian National Bowel Cancer Screening Program (NBCSP) will fully roll-out 2-yearly screening using immunochemical Faecal Occult Blood Test (iFOBT) in people aged 50-74 years by 2020. In this study, we aimed to estimate the comparative health benefits, harms, and cost-effectiveness of screening with iFOBT, versus other potential alternative or adjunctive technologies. A comprehensive validated microsimulation model, Policy1-Bowel, was used to simulate a total of 13 screening approaches involving use of iFOBT, colonoscopy, sigmoidoscopy, computed tomographic colonography (CTC), faecal DNA (fDNA) and plasma DNA (pDNA), in people aged 50-74 years...
February 14, 2018: International Journal of Cancer. Journal International du Cancer
Alexandros Charalabopoulos, Ali Kordzadeh, Elias Sdralis, Bruno Lorenzi, Fateh Ahmad
BACKGROUND: Esophagectomy in situs inversus is challenging. With long-segment supercharged reconstruction, it becomes more perplexing and multidisciplinary surgical skills are needed. Challenges met and the surgical technique used is presented in this case report. METHODS: The case of a 49-year old patient with situs inversus abdominus and a locally advanced distal esophageal adenocarcinoma extending to the stomach is presented. RESULTS: Following neoadjuvant chemotherapy and due to inability to use the stomach as a conduit, a thoracoscopic total esophagogastrectomy with long-segment reconstruction was performed...
February 13, 2018: Acta Chirurgica Belgica
Ngaire Bates, Helen Moore, Shona Matthews
No abstract text is available yet for this article.
February 2018: Journal of Medical Imaging and Radiation Oncology
Seong Ho Park, David H Kim
This article outlines how to achieve maximum accuracy in interpreting CT colonography (CTC) regarding colonic findings. Interpreting extracolonic findings seen on CTC is a separate diagnostic task and will not be addressed in this article. While many interpretive pitfalls are in fact related to CTC techniques, this article focuses on issues that are related to interpretive knowledge and skills, avoiding in-depth discussions on CTC techniques. Principal methods and further tips for detecting possible polyp candidates and for confirming true soft-tissue polyps will be discussed...
February 5, 2018: Abdominal Radiology
Kazuo Narushima, Hideaki Miyauchi, Gaku Ohira, Kouichi Hayano, Akiko Kagaya, Yorihiko Muto, Shunsuke Imanishi, Yoshihiro Kurata, Yumiko Takahashi, Naoto Sawada, Hiroki Watanabe, Hisahiro Matsubara
Left hemicolectomy is a standard surgical method for cancer of the descending colon. Resection involves the region from the left side of the transverse colon to the sigmoid colon. Although laparoscopic hemicolectomy is widely used, it is difficult to determine an appropriate resection range during surgery because of the limited visual field. Simulation computed tomography colonography(S-CTC), which combines CTC and 3-dimensional vascular imaging, enables the surgeon to clearly identify the position of the primary lesion and dominant vessel...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Abraham H Dachman, Matthew A Barish
Standardized recommended techniques for performing and reporting CT colonography (CTC) examinations were developed by a consensus of experts. Published reporting guidelines, known as the CT colonography reporting and data system supplemented by recently updated comprehensive recommendations were incorporated into the American College of Radiology (ACR) practice guidelines. The application of continuous quality improvement to the practice of CT was aided by the development of an ACR national data registry (NRDR) for CTC that addressed both process and outcome quality measures...
February 1, 2018: Abdominal Radiology
Hossein Mashhadi Abdolahi, Ali Sarabi Asiabar, Saber Azami-Aghdash, Fatemeh Pournaghi-Azar, Aziz Rezapour
Objective: Due to extensive literature on colorectal cancer and their heterogeneous results, this study aimed to summarize the systematic reviews which review the cost-effectiveness studies on different aspects of colorectal cancer. Methods: The required data were collected by searching the following key words according to MeSH: "colorectal cancer," "colorectal oncology," "colorectal carcinoma," "colorectal neoplasm," "colorectal tumors," "cost-effectiveness," "systematic review," and "meta-analysis...
January 2018: Asia-Pacific Journal of Oncology Nursing
Hannes Seuss, Rolf Janka, Matthias Hammon, Alexander Cavallaro, Michael Uder, Peter Dankerl
RATIONALE AND OBJECTIVES: To evaluate two- and three-dimensional (2D and 3D) image quality of sub-milliSievert (mSv) computed tomography (CT) colonography utilizing a third-generation dual source CT scanner featuring a tin filter. METHODS: We retrospectively evaluated 26 consecutive patients who underwent third-generation dual source CT colonography, nine with the standard-dose clinical-scan protocol (SDP) and 17 with a low-dose protocol (LDP) featuring a tin filter...
January 19, 2018: Academic Radiology
Carlijn Hermans, Dennis van der Zee, Lennard Gilissen
Background/Aims: Because of the national screening program for colorectal carcinoma in The Netherlands, the number of colonoscopies has increased. In case of incomplete colonoscopy, computed tomography colonography (CTC) and double-balloon colonoscopy (DBc) are alternative options. This study evaluated cecal intubation rate and pathology detection rate in the previously unexplored part of the colon, complication rate of DBc, and CTC results after incomplete colonoscopy. Methods: Retrospective observational study in a tertiary referral hospital regarding DBc and CTC reports from cases with incomplete colonoscopy...
January 10, 2018: Clinical Endoscopy
Masaki Matsuoka, Norihito Shimizu, Koichi Nagata, Hiroshi Saito
This report describes a case of rapidly growing colon cancer confirmed by computed tomographic colonography (CTC). A 75-year-old woman presented at our clinic with complaints of abdominal discomfort and melena. Colorectal examination was performed via CTC. The findings were normal. Sixteen months later, she was referred to our clinic again for positive findings on a faecal immunochemical screening test. A repeat CTC was performed, which revealed a 3 cm ulcerated tumour at the ascending colon. Colonoscopy with biopsy revealed tubular adenocarcinoma...
January 3, 2018: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
Natally Horvat, Aradhna Raj, John M Ward, J Joshua Smith, Arnold J Markowitz, Marc J Gollub
OBJECTIVE: CT colonography (CTC) has been recognized as a complementary approach to evaluating the entire colon after incomplete colonoscopy (IC) in patients with occlusive colorectal cancer (CRC). The objective of this study is to evaluate changes in preoperative surgical planning after CTC is performed for patients with occlusive CRC and IC in an oncologic hospital. MATERIALS AND METHODS: This retrospective study included 65 consecutive patients with occlusive CRC who underwent CTC after IC at our institution from February 2000 to April 2016...
December 20, 2017: AJR. American Journal of Roentgenology
Gaia Peluso, Paola Incollingo, Armando Calogero, Vincenzo Tammaro, Niccolò Rupealta, Gaetano Chiacchio, Maria Laura Sandoval Sotelo, Gianluca Minieri, Antonio Pisani, Eleonora Riccio, Massimo Sabbatini, Umberto Marcello Bracale, Concetta Anna Dodaro, Nicola Carlomagno
Background: Colorectal cancer (CRC) is one of the most spread neoplasia types all around the world, especially in western areas. It evolves from precancerous lesions and adenomatous polyps, through successive genetic and epigenetic mutations. Numerous risk factors intervene in its development and they are either environmental or genetic. Aim of the Review: Alongside common screening techniques, such as fecal screening tests, endoscopic evaluation, and CT-colonography, we have identified the most important and useful biomarkers and we have analyzed their role in the diagnosis, prevention, and prognosis of CRC...
2017: BioMed Research International
Narumi Taguchi, Seitaro Oda, Masanori Imuta, Sadahiro Yamamura, Takeshi Nakaura, Daisuke Utsunomiya, Masafumi Kidoh, Yasunori Nagayama, Hideaki Yuki, Kenichiro Hirata, Yuji Iyama, Yoshinori Funama, Hideo Baba, Yasuyuki Yamashita
RATIONALE AND OBJECTIVES: To assess the effect of model-based iterative reconstruction (MBIR) on image quality and diagnostic performance of low-radiation-dose computed tomography colonography (CTC) in the preoperative assessment of colorectal cancer. MATERIALS AND METHODS: This study included 30 patients with colorectal cancer referred for surgical treatment. All patients underwent CTC with a standard dose (SD) protocol in the supine position and a low-dose (LD; radiation dose reduction of approximately 85%) protocol in the prone position...
November 27, 2017: Academic Radiology
David S Weinberg, Perry J Pickhardt, David H Bruining, Kristin Edwards, J G Fletcher, Marc J Gollub, Eileen M Keenan, Sonia S Kupfer, Tianyu Li, Sam J Lubner, Arnold J Markowitz, Eric A Ross
BACKGROUND & AIMS: Recommendations for surveillance after curative surgery for colorectal cancer (CRC) include a 1 year post-resection abdominal-pelvic computed tomography scan and optical colonoscopy (OC). CT colonography (CTC), when used in CRC screening, effectively identifies colorectal polyps ≥10 mm and cancers. We performed a prospective study to determine whether CTC, concurrent with CT, could substitute for OC in CRC surveillance. METHODS: Our study enrolled 231 patients with resected stage 0-III CRC, identified at 5 tertiary care academic centers...
November 22, 2017: Gastroenterology
M J Martínez-Sapiña Llanas, S A Otero Muinelo, C Crespo García
OBJECTIVE: To review the spectrum of benign and malignant rectal diseases, their findings on CT colonography, and their management. CONCLUSION: Although CT colonography is not the first choice for the study of rectal disease, it is indicated in cases where optical colonoscopy is contraindicated or cannot be completed. Rectal lesions can go undetected because this anatomic area is difficult to evaluate; for this reason, it is essential to ensure optimal preparation and distension, moderate balloon insufflation, and careful 2D and 3D navigation with knowledge of the spectrum of rectal disease and its CT colonography signs...
November 20, 2017: Radiología
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