Navigation Links
Medical assessment in the blink of an eye
Date:6/17/2013

Have you ever thought that you knew something about the world in the blink of an eye? This restaurant is not the right place for dinner. That person could be The One. It turns out that radiologists can do this with mammograms, the x-ray images used for breast cancer screening. Cytologists, who screen micrographic images of cervical cells to detect cervical cancer, have a similar ability. A new study, published in Springer's journal Psychonomic Bulletin & Review, takes a closer look at the skill these specialists have.

There are many routes to making snap judgments (not all of them particularly useful). One of these is our ability to get the "gist" of an entire image by analyzing the whole scene at once, based on interpretation of global properties and image statistics, not focusing on specific details.

That seems to be what medical experts can do. They are not perfect in a fraction of a second but they do far better than random guessing when classifying medical images as normal or abnormal even though, in that blink of an eye, they cannot tell you where the problem might be located.

Karla Evans and colleagues, from Harvard Medical School and Brigham and Women's Hospital in the US, assessed medical experts' ability to categorize a breast cancer or cervical screening image as either normal or abnormal in a single glance. A total of 55 radiologists and 38 cytologists were shown either mammograms or images of cervical cells. Half the images were normal and half showed cancerous abnormalities.

Participants were shown the medical images briefly i.e., for 250 to 2000 milliseconds. They were asked to rate the abnormality of the image and then attempt to localize that abnormality on a subsequent screen showing only the outline of the original image.

Both groups of experts were able to detect subtle abnormalities more often than if they had simply guessed the answer; in other words, they showed above chance performance. Control groups, composed of non-expert observers who had no medical training, did no better than if they had guessed the answers on either the breast or cervical cancer images. Interestingly, neither expert group could localize the anomalies reliably in the second part of the experiment. The global gist of pathology might be detected in a flash. Localizing the problem would require a longer period of close scrutiny.

The authors conclude: "Our results show that, with specific training, an expert radiologist or cytologist learns the statistical regularities that distinguish normal from abnormal in the images in the realm of their expertise. They have the ability to feel that something is amiss, yet not know immediately where to find it. If the signal that helps with this initial decision could be identified by a computer, it could be used as a novel form of computer-aided detection."


'/>"/>

Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer
Source:Eurekalert

Related medicine news :

1. Physician Groups Call for Fewer Medical Tests
2. Weill Cornell Medical College establishes Center for Healthcare Informatics and Policy
3. CAM therapy combined with conventional medical care may improve treatment of lower back pain
4. Image share project gives patients and physicians anytime, anywhere access to medical images
5. Researchers determine vitamin D blood level for reducing major medical risks in older adults
6. Biomedical researchers receive Hartwell Foundation awards
7. Columbia University Medical Center and NY-Presbyterian experts at APA meeting
8. Fitness in Middle Age Lowers Medical Costs Later: Study
9. Ben-Gurion U. and Cincinnati Childrens Hospital to develop pediatric-specific medical technologies
10. Gene Tests May Not Drive Patients to More Medical Care
11. University studies and career expectations of medical students
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/19/2017)... ... ... WhoHaha , a digital media company dedicated to creating and delivering female-centric, comedic content, ... series that uses humor to highlight ways to improve heart health and overall well-being. ... movement, which is designed to inspire all Americans to make small changes that add ...
(Date:1/19/2017)... ... January 19, 2017 , ... Dr. Andrew Lian-Jie ... fellowship trained Mohs and cosmetic surgeon. After extensive dermatology research training at the ... internship in internal medicine at the Emory University and dermatology training at the ...
(Date:1/19/2017)... ... January 19, 2017 , ... ... for patients with sleep apnea and TMJ disorders. These conditions are quite common ... Dr. Rassouli provides personalized care to reduce the risk of these consequences and ...
(Date:1/19/2017)... (PRWEB) , ... January 19, 2017 , ... ... asset protection and financial planning services to communities throughout eastern Georgia, is embarking ... against heart disease. , Heart disease kills more Americans every year than anything ...
(Date:1/19/2017)... ... January 19, 2017 , ... Creative ... Create Real Impact contest from Impact Teen Drivers and California Casualty. Entries from ... , Educational grants totaling $15,000 will be awarded for the best peer-to-peer ...
Breaking Medicine News(10 mins):
(Date:1/19/2017)... -- Incretin Mimetics/GLP-1 Agonists, SNDRIs, Lipase Inhibitors, Serotonin Receptor ... global anti-obesity drugs market is expected to grow at a ... and CAGR of 38.7% in the second half of the forecast ... 32.8% from 2016 to 2027. The market is estimated at $1,058 ... 2027. ...
(Date:1/19/2017)... 19, 2017  Sensus Healthcare, Inc. (NASDAQ: ... in the treatment of non-melanoma skin cancers and ... radiation therapy, today announced that it will report ... results on Thursday, February 2, 2017 after the market ... conference call with the investment community on Thursday, February ...
(Date:1/19/2017)... New Review of Safinamide ... Symptoms and Motor Complications in Mid- to Late-stage ... ... C Warren Olanow ... 2): 2-15, http://www.touchneurology.com/articles/safinamide-new-therapeutic-option-address-motor-symptoms-and-motor-complications-mid-late Published ...
Breaking Medicine Technology: