Elizabeth A. Krupinski, PhD Arizona Telemedicine Program Ovitt, et al . Intravenous angiography using digital video subtraction: x-ray imaging system. AJR 135(6):1141-4, 1980.
Elizabeth A. Krupinski, PhD
Arizona Telemedicine Program
Ovitt, et al.Intravenous angiography using digital video subtraction: x-ray imaging system.AJR 135(6):1141-4, 1980.
An x-ray imaging system, using digital subtraction techniques, has been developed. The system requires: (1) high output generation equipment; (2) an image intensifier capable of receiving high output exposures, 1 mR (2.58 X 10(-7) C/kg) at the face of the intensifier, without loss of either contrast or resolution; (3) a precision digital video camera; (4) processing computer with sufficient storage capacity; and (5) digital image storage. With this system it is possible to visualize the major arteries after intravenous contrast injection.
Capp et al.
The digital radiology department of the future.
Rad Clin N Am 23(2):349-55, 1985.
The boom in microelectronics, including cost-effectiveness, has
now allowed us to consider the use of these objects to store
digital images. There remains much research, development,
And clinical evaluation to be done in receptor technology.
Further improvements in image processing, optical laser disk
storage, & optical transmission and further commercial
Development of display technology must take place. All of
These developments are occurring simultaneously. Within 5 to
10 years, radiology departments will most likely be totally
electronic, probably cost-effective, and, it is hoped, more
Spatial & contrast resolution limitations require radiologists to search images. The UVF is about 2.5 deg radius. Probability of target detection falls off as a function of target eccentricity from axis of gaze.
Display & Interface
20% fixations fell outside diagnostic image
Even Worse in Rural
Milestone Medical Systems RHS-1-30
DMetrixTM -40 Slide Scanner System
(Quon et al. J ClinOncol; 2005; 23:1664-1673)
Clarke et al. Validation if Tumor Burden Measurements
Using 3D Histopathology. In: Digital Mammography 2008.
Getty et al. Stereoscopic Digital Mammography:
Improved Accuracy of Lesion Detection in Breast Cancer Screening.
In: Digital Mammography 2008. Springer-Verlag.
F = 4.1496, p = 0.0471
Sensitivity = 0.91 vs 0.86
Specificity = 0.93 vs 0.92
F = 3.38, p = 0.067
No significant differences
TN significantly different