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Abdominal Pelvic Novel software aid Capsule Endoscopy Readers to diagnose enteric lesions.
Abdominal Pelvic Novel software aid Capsule Endoscopy Readers to diagnose enteric lesions.
Novel software aid Capsule Endoscopy Readers to diagnose enteric lesions.
Saturday, 03 January 2009 06:01 | 
| Specialties |
The computer-aided screening diagnosis can exclude a large number of the normal images and confine the enteric lesions to 5000 images on average, which can reduce the workload of the CE readers in the scanning of the images.
Capsule endoscopy (CE) is a revolutionary diagnostic tool in diagnosing small bowel diseases. CE can obtain 40-60 thousand images of the GI tract, though the number of the images for the lesions is smaller than 500 in most of the patients. The CE reader still has to scan ten thousands of the images one by one because the reader cannot make sure which images the lesions are in. To decrease the workload of the readers, a research team led by Prof. Wu and Dr. Gan from West China Hospital of Sichuan University developed a kind of image-processed software (IPS)
In Capsule Endoscopy, the patient ingests a small capsule which contains a color camera which records images of the digestive tract. The camera takes two pictures every second for eight hours, hence the CE reader has to go through thousands of pictures of a single procedure before reaching a diagnosis which is quite tiresome. The new software provides a solution for it.
IPS is a kind of software installed in the computer workstation, which can identify the common lesions in the small intestines based on the characteristic colors and contours of the lesions and thus screen out a large number of normal images from the original images; so that, only 10%-15% of the original images were left behind, among which most of the commonly-encountered lesions in the small intestines were preserved for diagnosis.
Compared with the diagnostic results obtained by the CE readers, the total effectiveness rate (sensitivity) in the screening of the commonly encountered enteric lesions by IPS varied from 42.9% to 91.2%, with a median of 74.2%, though the specificity and the accuracy rates were still low, and the images for the rarely-encountered lesions were difficult to differentiate from the normal images. However, the number of the images screened by IPS was 5000 on average, and only 10%-15% of the original images were left behind. As a result, a large number of normal images were excluded, and the reading time decreased from 5 h to 1 h on average.
The specificity and the accuracy rates are low by the computer-aided screening for the enteric lesions with IPS than those by the CE readers, the computer-aided screening diagnosis can exclude a large number of the normal images and confine the enteric lesions to 5000 images on average, which can reduce the workload of the readers in the scanning of the images. This computer-aided screening technique can make a correct diagnosis as efficiently as possible in most of the patients.
Source: West China Hospital of Sichuan University
Capsule endoscopy (CE) is a revolutionary diagnostic tool in diagnosing small bowel diseases. CE can obtain 40-60 thousand images of the GI tract, though the number of the images for the lesions is smaller than 500 in most of the patients. The CE reader still has to scan ten thousands of the images one by one because the reader cannot make sure which images the lesions are in. To decrease the workload of the readers, a research team led by Prof. Wu and Dr. Gan from West China Hospital of Sichuan University developed a kind of image-processed software (IPS)
In Capsule Endoscopy, the patient ingests a small capsule which contains a color camera which records images of the digestive tract. The camera takes two pictures every second for eight hours, hence the CE reader has to go through thousands of pictures of a single procedure before reaching a diagnosis which is quite tiresome. The new software provides a solution for it.
IPS is a kind of software installed in the computer workstation, which can identify the common lesions in the small intestines based on the characteristic colors and contours of the lesions and thus screen out a large number of normal images from the original images; so that, only 10%-15% of the original images were left behind, among which most of the commonly-encountered lesions in the small intestines were preserved for diagnosis.
Compared with the diagnostic results obtained by the CE readers, the total effectiveness rate (sensitivity) in the screening of the commonly encountered enteric lesions by IPS varied from 42.9% to 91.2%, with a median of 74.2%, though the specificity and the accuracy rates were still low, and the images for the rarely-encountered lesions were difficult to differentiate from the normal images. However, the number of the images screened by IPS was 5000 on average, and only 10%-15% of the original images were left behind. As a result, a large number of normal images were excluded, and the reading time decreased from 5 h to 1 h on average.
The specificity and the accuracy rates are low by the computer-aided screening for the enteric lesions with IPS than those by the CE readers, the computer-aided screening diagnosis can exclude a large number of the normal images and confine the enteric lesions to 5000 images on average, which can reduce the workload of the readers in the scanning of the images. This computer-aided screening technique can make a correct diagnosis as efficiently as possible in most of the patients.
Source: West China Hospital of Sichuan University
