Using CAD in mammography should be about improving the standard of care, not about excessive IT expenses. Get superior performance and reduce your cost by 90% whether you are looking for a new system or would like to reduce support payments for your current system. Parascript revolutionizes mammography CAD by providing the best-performing system for dense breast tissue, improves both sensitivity and specificity, and does it in one-third of the time required by other available products.
CAD for Mammography
Parascript® AccuDetect® Computer-Aided Detection (CAD) software helps radiologists read digital mammograms. AccuDetect identifies areas suspicious for breast cancer for further review using complementary algorithms and sophisticated voting methods to achieve high sensitivity and low false-positive rates.
Parascript® AccuDetect® Computer-Aided Detection (CAD) for Mammography improves the performance of radiologists in discriminating between malignant and nonmalignant cases.
AccuDetect showed better overall performance when compared to iCAD Second Look (version 7.2) in detecting masses, microcalcifications and all cancer types, especially in extremely dense breasts, according to the retrospective comparative study, “Malignant Lesions on Mammography: Accuracy of Two Different Computer-Aided Detection Systems,” (Lobbes et al., Clinical Imaging 37 (2013) 283-288), the previous version of the AccuDetect CAD (AccuDetect Galileo version 4.0.1).
When compared to Second Look in extremely dense breasts (ACR 4), AccuDetect demonstrated 15.4 percent increase in detection of both masses and calcifications with similar operating points for both CAD systems. Most importantly, for total cancer cases in extremely dense breasts, the percentage of cancers correctly identified by AccuDetect was 14.6 percent higher than that of Second Look, again with similar operating points.
CAD for Mammography software uses different mechanisms to detect lesions. Second Look detects culprit lesions on mammograms using image processing, pattern recognition, and artificial intelligence techniques based on the knowledge from thousands of mammograms. In addition to these well-known approaches, AccuDetect system uses multiple independent cancer detection algorithms and unique patented voting methodology (“Voting in Mammography Processing.” US Patent 8,311,296.) to combine its findings. Comparing the results of the multiple image recognition processes allows for the mitigation of the inherent faults of the recognition processes, thus leading to reduced false-positive and false-negative rates.
The Digital Imaging and Communications in Medicine (DICOM) standard facilitates interoperability of medical equipment. Below is Parascript’s DICOM Conformance Statement for Parascript AccuDetect Computer Aided Detection (CAD) software.
How AccuDetect works:
AccuDetect CAD for Mammography Performance
SUPERIOR CAD WORKFLOW PERFORMANCE
- Fast processing time – 11 seconds per image,
45 seconds per 4-view study.
(Compared to: iCAD’s SecondLook: 30 seconds per image, 120 seconds per 4-view study; and Hologic’s R2: 30 seconds per image, 120 seconds per 4-view study.)
(P. Tchou et al., “Interpretation Time of Computer-aided Detection at Screening Mammography.” Radiology. October 2010.)
- Priority queuing of preferred devices for important or urgent studies.
- CAD server supports up to four FFDM systems.
DETECTION OF MICROCALCIFICATIONS
- Detects calcification clusters consisting of several calcifications with size between 0.1mm and 0.8mm. in diameter within 2cm2 area.
- Results for calcifications: 90% sensitivity with 0.75 false positives per four-view study.
DETECTION OF SOFT TISSUE DENSITIES
- Detects soft tissue densities with a diameter
between 5mm and 50mm.
- Results for soft tissue densities: 83.3% sensitivity
with 0.95 false positives per four-view study.
OUTSTANDING STANDALONE PERFORMANCE
AccuDetect’s sophisticated CAD algorithms support early, more accurate detection:
- 91% sensitivity with 1.6 false positives per
- 45% specificity (percentage of normal cases
where CAD did not show any marks).
- Delivers very high performance on dense/extremely dense breasts – 85% sensitivity, 43% specificity, 1.5 false positives per four-view study. (The differences in both sensitivity and specificity between AccuDetect CAD results for dense or extremely dense breasts and fatty or scattered fibroglandular breasts are statistically insignificant.)
AccuDetect CAD for Mammography Compatibility
AccuDetect 7.0 includes a Windows 7, multi-vendor CAD server that provides consistency across all digital mammography systems. Please see the ACCUDETECT BROCHURE for details.