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https://www.readbyqxmd.com/read/29644509/applications-of-colon-capsule-endoscopy
#1
REVIEW
Shabana F Pasha
PURPOSE OF REVIEW: This is a review of colon capsule endoscopy (CCE) with a focus on its recent developments, technological improvements, and current and potential future indications. RECENT FINDINGS: Based on the current literature, CCE II demonstrates comparable polyp detection rates as optical colonoscopy and CT colonography, and improved cost-effectiveness. The main limitation to patient acceptance is the requirement of a rigorous bowel preparation. Preliminary studies show good correlation between CCE and optical colonoscopy for assessment of colonic disease activity in inflammatory bowel disease (IBD)...
April 12, 2018: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/29609829/is-the-virtual-colonoscopy-a-replacement-for-optical-colonoscopy
#2
REVIEW
Andrew Guinigundo
OBJECTIVE: To examine the viability of colon cancer screening with computed tomography colonography, also known as virtual colonoscopy. DATA SOURCES: Clinical guidelines, published medical research. CONCLUSION: Virtual colonoscopy, under the right circumstances, is an accurate viable screening tool for patients who may not otherwise desire to or are not able to participate in traditional colonoscopy. IMPLICATIONS FOR NURSING PRACTICE: Nurses should be aware that routine colon cancer screening is recommended starting at age 50...
March 30, 2018: Seminars in Oncology Nursing
https://www.readbyqxmd.com/read/29602538/a-comparison-of-computer-assisted-detection-cad-programs-for-the-identification-of-colorectal-polyps-performance-and-sensitivity-analysis-current-limitations-and-practical-tips-for-radiologists
#3
L T O Bell, S Gandhi
AIM: To directly compare the accuracy and speed of analysis of two commercially available computer-assisted detection (CAD) programs in detecting colorectal polyps. MATERIALS AND METHOD: In this retrospective single-centre study, patients who had colorectal polyps identified on computed tomography colonography (CTC) and subsequent lower gastrointestinal endoscopy, were analysed using two commercially available CAD programs (CAD1 and CAD2). Results were compared against endoscopy to ascertain sensitivity and positive predictive value (PPV) for colorectal polyps...
March 27, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29572136/addressing-racial-disparity-in-colorectal-cancer-screening-with-ct-colonography-experience-in-an-african-american-cohort
#4
Courtney C Moreno, Todd F Fibus, Elizabeth A Krupinski, David H Kim, Perry J Pickhardt
BACKGROUND: Incidence and mortality from colorectal cancer (CRC) are higher among African Americans where CRC screening rates lag behind non-Hispanic whites. The purpose of this investigation was to evaluate CT colonography (CTC) performance and outcome measures in an African-American cohort. MATERIALS AND METHODS: This study is an institutional review board-approved and Health Insurance Portability and Accountability Act-compliant study. Retrospective evaluation of the African-American cohort from the Atlanta VA Medical Center (Decatur, Georgia) CTC screening program...
February 20, 2018: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/29566994/volumetric-textural-analysis-of-colorectal-masses-at-ct-colonography-differentiating-benign-versus-malignant-pathology-and-comparison-with-human-reader-performance
#5
B Dustin Pooler, Meghan G Lubner, Jake R Theis, Richard B Halberg, Zhengrong Liang, Perry J Pickhardt
RATIONALE AND OBJECTIVES: To (1) apply a quantitative volumetric textural analysis (VTA) to colorectal masses at CT colonography (CTC) for the differentiation of malignant and benign lesions and to (2) compare VTA with human performance. MATERIALS AND METHODS: A validated, quantitative VTA method was applied to 63 pathologically proven colorectal masses (mean size, 4.2 cm; range, 3-8 cm) at noncontrast CTC in 59 adults (mean age, 66.5 years; range, 45.9-91.6 years)...
March 19, 2018: Academic Radiology
https://www.readbyqxmd.com/read/29557216/fully-automated-segmentation-and-quantification-of-visceral-and-subcutaneous-fat-at-abdominal-ct-application-to-a-longitudinal-adult-screening-cohort
#6
Scott J Lee, Jianmin Liu, Jianhua Yao, Andrew Kanarek, Ronald M Summers, Perry J Pickhardt
OBJECTIVE: To investigate a fully-automated CT-based adiposity tool, applying it to a longitudinal adult screening cohort. METHODS: A validated automated adipose tissue segmentation algorithm was applied to non-contrast abdominal CT scans in 8852 consecutive asymptomatic adults (mean age, 57.1 years; 3926M/4926F) undergoing colonography screening. The tool was also applied to follow-up CT scans in a subset of 1584 individuals undergoing longitudinal surveillance (mean interval, 5...
March 20, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29540145/computed-tomography-colonography-underutilised-in-australia
#7
Simon Hew, Zaid Sm Ardalan
No abstract text is available yet for this article.
March 19, 2018: Medical Journal of Australia
https://www.readbyqxmd.com/read/29516105/ct-colonography-over-two-decades-from-discovery-to-practice
#8
Perry J Pickhardt, Judy Yee, C Daniel Johnson
Since the introduction of CT colonography (CTC) in the mid-1990s, there have been continuous advancements in the examination technique and advanced visualization software for interpretation. This review will cover the origins of CTC as a natural extension of abdominal CT imaging, and discuss the evolution of CTC through the subsequent clinical phases of feasibility, validation, and implementation.
March 7, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29503554/computed-tomography-colonography-versus-colonoscopy-for-the-diagnosis-of-colorectal-cancer-a-systematic-review-and-meta-analysis
#9
REVIEW
Ralph B Duarte, Wanderley M Bernardo, Christiano M Sakai, Gustavo Lr Silva, Hugo G Guedes, Rogerio Kuga, Edson Ide, Robson K Ishida, Paulo Sakai, Eduardo Gh de Moura
Colorectal cancer (CRC) is a significant cause of morbidity and mortality. Optical colonoscopy (OC) is the first choice of investigation for assessing the state of the colon and it is excellent for CRC screening. Newer technologies such as computed tomography colonography (CTC) may also be useful in CRC screening. This systematic review compares the benefits of CTC and OC for CRC screening. This review includes all the available randomized clinical trials comparing CTC and OC for CRC screening in asymptomatic patients...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29492185/dolichocolon-revisited-an-inborn-anatomic-variant-with-redundancies-causing-constipation-and-volvulus
#10
REVIEW
Dennis Raahave
The objective of this review is to examine whether a redundant colon gives rise to symptoms like constipation and volvulus. In 1820, Monterossi made drawings of colons with displacements and elongation of the colon found during autopsy. In 1912, Kienböeck first visualized a redundant colon using bismuth, and Lardennois and Auborg named the anatomic variant dolichocolon in 1914. The criteria were later: A sigmoid loop rising over the line between the iliac crests, a transverse colon below the same line and extra loops at the flexures...
February 27, 2018: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29491380/accuracy-of-combined-computed-tomography-colonography-and-dual-energy-iiodine-map-imaging-for-detecting-colorectal-masses-using-high-pitch-dual-source-ct
#11
Kai Sun, Ruijuan Han, Yang Han, Xuesen Shi, Jiang Hu, Bin Lu
To evaluate the diagnostic accuracy of combined computed tomography colonography (CTC) and dual-energy iodine map imaging for detecting colorectal masses using high-pitch dual-source CT, compared with optical colonography (OC) and histopathologic findings. Twenty-eight consecutive patients were prospectively enrolled in this study. All patients were underwent contrast-enhanced CTC acquisition using dual-energy mode and OC and pathologic examination. The size of the space-occupied mass, the CT value after contrast enhancement, and the iodine value were measured and statistically compared...
February 28, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29487748/factors-associated-with-pericolic-fat-stranding-of-colon-cancer-on-computed-tomography-colonography
#12
Tsuyoshi Morimoto, Takayuki Yamada, Kunihisa Miyakawa, Yasuo Nakajima
Background: Pericolic fat stranding on computed tomography (CT) scans has been an important feature for staging colon cancer. However, the factors associated with pericolic fat stranding have not been elucidated to date. Purpose: To determine factors associated with pericolic fat stranding of colon cancer on CT colonography (CTC). Material and Methods: Overall, 150 patients with 155 colon cancer lesions were retrospectively assessed by two radiologists for pericolic fat stranding on CTC...
February 2018: Acta Radiologica Open
https://www.readbyqxmd.com/read/29486502/colon-capsule-versus-computed-tomography-colonography-for-colorectal-cancer-screening-in-patients-with-positive-fecal-occult-blood-test-who-refuse-colonoscopy-a-randomized-trial
#13
Mathieu Pioche, Christell Ganne, Rodica Gincul, Antoine De Leusse, Julien Marsot, Julien Balique, Alain Fond, Michel Bretagnolle, Luc Henry, Yann Billaud, Romain Malezieux, Marie-Georges Lapalus, Christine Chambon-Augoyard, Emilie Del Tedesco, Olivia Scalone, Jean-Charles Montoy, Benoit Russias, Antoine Detry, Frédéric Veniat, Jin Qiu, Pierre-Jean Valette, Annabel Taillandier, Jean-Christophe Saurin, Josiane Tomczyk-Ferrero, Clémentine Gandilhon, Léa Vecchiato, Patricia Soler-Michel, Thierry Ponchon
OBJECTIVE:  Some patients (10 % - 32 %) with a positive guaiac fecal occult blood test (gFOBT) do not undergo the recommended colonoscopy. The aim of this study was to compare video capsule endoscopy (VCE) and computed tomography colonography (CTC) in terms of participation rate and detection outcomes when offered to patients with a positive gFOBT who did not undergo the recommended colonoscopy. METHODS:  An invitation letter offering CTC or VCE was sent to selected patients after randomization...
February 27, 2018: Endoscopy
https://www.readbyqxmd.com/read/29485322/colorectal-cancer-cost-effectiveness-of-colonoscopy-versus-ct-colonography-screening-with-participation-rates-and-costs
#14
Miriam P van der Meulen, Iris Lansdorp-Vogelaar, S Lucas Goede, Ernst J Kuipers, Evelien Dekker, Jaap Stoker, Marjolein van Ballegooijen
Purpose To compare the cost-effectiveness of computed tomographic (CT) colonography and colonoscopy screening by using data on unit costs and participation rates from a randomized controlled screening trial in a dedicated screening setting. Materials and Methods Observed participation rates and screening costs from the Colonoscopy or Colonography for Screening, or COCOS, trial were used in a microsimulation model to estimate costs and quality-adjusted life-years (QALYs) gained with colonoscopy and CT colonography screening...
February 27, 2018: Radiology
https://www.readbyqxmd.com/read/29484051/colonic-angiodysplasia-on-ct-colonography-case-report-and-characteristic-imaging-findings
#15
Laura Filograna, Enrica Filograna, Adolfo D'Onofrio, Nicola Flor, Yusef Haddad, Roberto Floris
Gastrointestinal angiodysplasia represents the cause of 6% of lower gastrointestinal tract bleeding, particularly in the elderly. Because of the common presentation and age range of affected patients, often patients with occult or massive gastrointestinal bleedings are investigated with colonoscopy, in the suspect of colonic cancer. Other methods are capsule enteroscopy, angiography, double-contrast barium enema, computed tomography angiography, and radionuclide scanning. In this contribution, we describe a case of colonic angiodysplasia first suspected during computed tomography colonography performed after an incomplete colonoscopy in a patient with recent anemization...
December 2017: Radiology Case Reports
https://www.readbyqxmd.com/read/29477264/patient-knowledge-regarding-colorectal-cancer-risk-opinion-of-screening-and-preferences-for-a-screening-test
#16
Courtney C Moreno, Thomas Jarrett, Brianna L Vey, Pardeep K Mittal, Elizabeth A Krupinski, David L Roberts
AIMS: To assess patient knowledge about colorectal cancer incidence and prognosis as well as willingness to undergo screening with various tests (eg, optical colonoscopy, stool-based tests, computed tomographic colonography (CTC)). MATERIALS AND METHODS: A survey was administered to consecutive patients of a general academic-based internal medicine clinic. RESULTS: Survey response rate was 86.3%. A majority of respondents (55%) reported being aware of general information about colorectal cancer, and 99% indicated a belief that colorectal cancer screening was a good idea...
January 6, 2018: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29472116/post-imaging-colorectal-cancer-or-interval-cancer-rates-after-ct-colonography-a-systematic-review-and-meta-analysis
#17
Anu E Obaro, Andrew A Plumb, Thomas R Fanshawe, Ulysses S Torres, Rachel Baldwin-Cleland, Stuart A Taylor, Steve Halligan, David N Burling
BACKGROUND: CT colonography is highly sensitive for colorectal cancer, but interval or post-imaging colorectal cancer rates (diagnosis of cancer after initial negative CT colonography) are unknown, as are their underlying causes. We did a systematic review and meta-analysis of post-CT colonography and post-imaging colorectal cancer rates and causes to address this gap in understanding. METHODS: We systematically searched MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials...
February 19, 2018: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29472115/ct-colonography-provides-new-insights-into-interval-cancers
#18
Perry J Pickhardt
No abstract text is available yet for this article.
February 19, 2018: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29462029/patient-tolerance-and-acceptance-of-different-colonic-imaging-modalities-an-observational-cohort-study
#19
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
https://www.readbyqxmd.com/read/29461954/is-ct-colonography-better-tolerated-than-flexible-sigmoidoscopy-for-colorectal-cancer-screening
#20
Stuart A Taylor, Christian von Wagner
No abstract text is available yet for this article.
March 2018: Radiology
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