Use of helical MDCT better at detecting abnormal airways

Use of helical high-resolution multi-detector CT (MDCT) with one millimeter collimation proves to be better than conventional high-resolution CT (HRCT) in showing the presence and extent of bronchiectasis (abnormal enlargement of the respiratory passages within the lungs), according to a study conducted by Vancouver General Hospital's department of radiology in Vancouver, BC, Canada.

"Although high resolution CT [when using 1 to 1.5 millimeter slices every 10 millimeters] has been regarded as the radiological gold standard in the diagnosis of bronchiectasis, we knew from previous studies that it had significant limitations," said Nestor Muller, MD, lead author of the study. "The main limitation is that the traditional high-resolution CT technique, consisting of thin sections at ten millimeter intervals through the chest, fails to evaluate most of the lungs and the airways therein," said Dr. Muller.

The study included 61 patients who were diagnosed with bronchiectasis by either MDCT or HRCT. Seven patients had positive MDCT scans only and two patients had positive HRCT scans only. MDCT detected bronchiectasis in 202 lobes compared with 162 lobes with HRCT.

"The results indicate that volumetric CT with thin sections is superior to conventional high-resolution CT technique in the detection of bronchiectasis. It should be noted however that when using the same exposure factors MDCT results in considerably greater radiation dose," said Dr. Muller. "The radiation risk is considerably greater in children than in adults, being lowest in patients over 50. In all circumstances, we try to limit the radiation dose by using the lowest exposure factors consistent with good image quality," he said.


Contact: Necoya Lightsey
American Roentgen Ray Society

Page: 1

Related medicine news :

1. Conventional prognostic factors fail to explain better prostate cancer survival in most Asian men
2. Waist-to-hip ratio may better predict cardiovascular risk than body mass index
3. Warfarin better than aspirin at stroke prevention in elderly people with atrial fibrillation
4. Nonsmall cell lung cancer -- chemotherapy before surgery appears better than surgery alone
5. Stroke in nonvascular atrial fibrillation -- anti-coagulants better than anti-platelet therapy
6. Holograms make for better vision tests
7. Parents of chronically ill kids are helped by better access to federal and employer leave
8. Diabetes professionals join forces to identify gaps in diabetes care and better self care
9. Exploring better ways to determine when to change the course of treatment
10. Gene variations point to why lung cancer drugs work better in Japanese vs. US patients
11. More rib fractures, but better survival rates

Post Your Comments:

(Date:10/12/2017)... ... 12, 2017 , ... First Healthcare Compliance (FHC), an industry ... a range of technology and learning solutions at the 68th Annual American Healthcare ... be held October 14–18, 2017 at the Mandalay Bay Resort in Las Vegas, ...
(Date:10/12/2017)... New Orleans, LA (PRWEB) , ... October 12, 2017 , ... ... fitness centers in the U.S., announced today its plans to open a flagship location ... club will occupy the former Rooms To Go store next to Office Depot in ...
(Date:10/12/2017)... ... 12, 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ), one of ... innovative new design of the shoulder pad. The shoulder pad provides optimal support ... your pain while using cold therapy. By utilizing ice and water that is circulated ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, ... post-acute health care, have expanded their existing home health joint venture through an ... has been operating a joint venture home health company with Asante, delivering clinically ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... has recently contributed a medical article to the newly revamped Cosmetic Town ... article spotlights the hair transplant procedure known as Follicular Unit Extraction ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... Divoti USA will engrave and process all non-coated ... latest FDA requirements, which stipulates new criteria regarding medical device manufacture ... Medical ID jewelry such as Medical ID Bracelets, can rest assured ... of the new FDA requirements . ... Divoti offers this dark mark fiber laser engraving process ...
(Date:10/11/2017)... 2017  True Health, a leader in integrated ... during National Breast Cancer Awareness month to educate ... Research recently published ... more than 10 million American women are at ... or BRCA2 and have not had testing. These mutations ...
(Date:10/7/2017)... --  Provista, a proven leader in the supply ... power, today announced a new resource area on Provistaco.com ... is the online home for case studies, articles on ... releases, slideshows and events. ... at their fingertips, viewers can also watch short videos ...
Breaking Medicine Technology:
Cached News: