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Recent News and Articles on the Keywords: ct colonoscopy + colonoscopy + rate  Related to the article below (Last Update: 8/5/2008)

Air-conditioning forces Tobey to suspend some services
South Coast Today, MA -
The hospital is rescheduling surgeries through Thursday, with the exception of some endoscopies and colonoscopies, with plans to evaluate as the week ...
Easier colon cancer test may be over-the-counter
The Times-Picayune - NOLA.com, LA - Aug 2, 2008
It joins six other tests, including the traditional colonoscopy and the new CT colonography, or virtual colonoscopy. Dr. Sanford Markowitz, a cancer ...

Otago Daily Times
Doubts over cancer screening programme
Otago Daily Times, New Zealand - Jul 28, 2008
This could have included three trials, one using occult faecal blood, another a one-off colonoscopy at the age of 50 or 55 and a third using CT colonography ...
US Preventive Medicine: Knowing Risk Factors & Early Detection are ...
MarketWatch - Jul 14, 2008
"That means annual Fecal Occult Blood Test (FOBT), with a periodic fiberoptic colonoscopy, a CT colonography (virtual colonoscopy), or double contrast ...
Online only-Letters
Seattle Times, United States - Jul 11, 2008
While your article suggests that CT-scanner manufacturers were the only ones to criticize the decision to deny coverage of virtual colonoscopies, ...
In sickness and in health: Belleville pulls through cholera ...
Belleville News Democrat,  USA - Jul 16, 2008
Intricate heart surgeries, cancer care centers, virtual colonoscopies ... the list is long and filled with an ever-growing number of cutting-edge ...
Source: Google News

… Comparison of Thin-Section Low-Dose Multi-Detector Row CT Colonography and Conventional Colonoscopy … -
M Macari, EJ Bini, X Xue, A Milano, SS Katz, D … - Radiology, 2002 - RSNA
... it was a true polyp that was missed at colonoscopy. ... As in other applications of CT,
in CT polyp detection ... may yield improved polyp detection rates and decreased ...

Yearly colonoscopy, liver CT, and chest radiography do not influence 5-year survival of colorectal … -
D Schoemaker, R Black, L Giles, J Toouli - Gastroenterology, 1998 - Elsevier
... and an intensive follow-up program, which added yearly colonoscopy, CT of the ... lesions
would result in earlier treatment and therefore a higher survival rate. ...

Is virtual colonoscopy a cost-effective option to screen for colorectal cancer? -
A Sonnenberg, F Delco, P Bauerfeind - American Journal of Gastroenterology, 1999 - Blackwell Synergy
... For the two screening procedures to become similarly cost-effective, CT colonoscopy
needs to be associated with an initial compliance rate 15?20% better or ...

Diagnostic accuracy and interobserver agreement of CT colonography (virtual colonoscopy) -
P Pescatore, T Glucker, J Delarive, R Meuli, D … - British Medical Journal, 2000 - gut.bmj.com
... without CT colography (virtual colonoscopy). Gastrointest Endosc 1999;50:309-313[
Medline]. 24. Rex DK, Cutler CS, Lemmel GT, et al. Colonoscopic miss rates of ...

Colorectal Cancer: Role of CT Colonography in Preoperative Evaluation after Incomplete Colonoscopy -
E Neri, P Giusti, L Battolla, P Vagli, P Boraschi, … - Radiology, 2002 - RSNA
... and interendoscopist variation on colonoscopy completion rates. Endoscopy 2001;
33:511-517. Royster A, Fenlon HM, Clarke PD. CT colonoscopy of colorectal ...

Patient Preferences for CT Colonography, Conventional Colonoscopy, and Bowel Preparation -
SL Ristvedt, EG McFarland, LB Weinstock, EP … - American Journal of Gastroenterology, 2003 - Blackwell Synergy
... At time 2, conducted just after completion of the CT test and before the colonoscopy
examination, subjects were asked to rate their experiences regarding that ...

… Tomographic Colonography (Virtual Colonoscopy) A Multicenter Comparison With Standard Colonoscopy … -
PB Cotton, VL Durkalski, BC Pineau, YY Palesch, PD … - JAMA, 2004 - Am Med Assoc
... Participants were also asked to rate their experience compared ... The respective data
for conventional colonoscopy were 71%, 23 ... outside of the colon on the CT scans ...

Prospective blinded evaluation of computed tomographic colonography for screen detection of … -
CD Johnson, WS Harmsen, LA Wilson, RL Maccarty, TJ … - Gastroenterology, 2003 - Elsevier
... Conclusions: In a low prevalence setting, polyp detection rates at CT
colonography are well below those at colonoscopy. These rates ...

[PDF] … Display Modes for CT Colonography: Conventional 3D Virtual Colonoscopy versus Unfolded Cube … -
FA Gerritsen, J Stoker - Radiology, 2003 - visualisation.tudelft.nl
... transfer function, sampling and frame rate, were identical to ... with more than 50 CT
colonography examina ... blinded to findings during colonoscopy, including those ...
-

Magnetic Resonance Colonography Versus Conventional Colonoscopy for the Detection of Colonic … -
G Pappalardo*, E Polettini?, FM Frattaroli*, E … - Gastroenterology, 2000 - Elsevier
... Virtual colonoscopy using CT and MRI. Radiology 1998;38:824?831. 10. ... Distri- bution,
incidence of malignant transformation and rate of recur- rence. ...

Source: Google Scholar
 

CT colonoscopy has 90 percent agreement rate with optical colonoscopy

Nearly 90% of colon polyps greater than or equal to 6 mm in size detected at CT colonoscopy were demonstrated to represent true polyps at subsequent optical colonoscopy (the traditional method of viewing the colon and removing precancerous growths), according to a new study by researchers from the University of Wisconsin Hospital and Clinics in Madison, WI.

"We analyzed the findings of 363 CTC-detected lesions in 244 patients who subsequently underwent optical colonoscopy," said Tyler Prout, MD, lead author of the study. The researchers found that optical colonoscopy verified the presence of polyps in 321 of the 363 CTC-detected instances, making for an overall positive predictive value of 88.4%, he said. In addition, the combined group of polyps with either sessile or pedunculated morphology yielded a matching lesion at optical colonoscopy 91.8% of the time, Dr. Prout added.

"From a practical standpoint, this is very important, because if CTC is to be an effective screening tool it, must not only have a high sensitivity, but have sufficiently high concordance rate at subsequent optical colonoscopy to avoid unnecessary colonoscopies," said Dr. Prout.

Article continues below and (thank you)
 

Exact polyp size had little effect on the concordance rate, said Dr. Prout. "In our more recent experience, we do nearly as well detecting the smaller 6-7 mm polyps as those that are 1 cm or greater. Moreover, when comparing these results to our earlier experience, we find our positive predictive value at the 6-7mm polyp size threshold to be much improved; now 85%, whereas it was previously just over 50%," said Dr. Prout. "We believe that this finding can be attributed to a combination of factors, some of the most important of which include colonic preparation and method of image analysis. Our colonic preparation includes both fluid and stool tagging. For image analysis, we employ a primary 3D evaluation complemented by focused review of 2D multiplanar reformats for confirmation. This is in contradistinction from many studies that utilize primary 2D interpretation," said Dr. Prout.

The full results of this study will be presented as an electronic exhibit Monday, May 7 through Thursday May 10 during the American Roentgen Ray Society’s annual meeting in Orlando, FL.
 
 
 
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