Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Peter H. Arger"'
Publikováno v:
Journal of Mammary Gland Biology and Neoplasia. 11:113-123
Frequent advances in transducer design, electronics, computers, and signal processing have improved the quality of ultrasound images to the extent that sonography is now a major mode of imaging for the clinical diagnosis of breast cancer. Breast ultr
Publikováno v:
Medical Physics. 32:3318-3328
We propose a semiautomated seeded boundary extraction algorithm that delineates diffuse region boundaries by finding and plugging their leaks. The algorithm not only extracts boundaries that are partially diffuse, but in the process finds and quantif
Publikováno v:
Academic Radiology. 12:487-495
To compare logistic regression and artificial neural network for computer-aided diagnosis on breast sonograms.Ultrasound images of 24 malignant and 30 benign masses were analyzed quantitatively for margin sharpness, margin echogenicity, and angular v
Autor:
Chandra M. Sehgal, Theodore W. Cary, Sarah A. Kangas, Susan M. Schultz, Peter H. Arger, Emily F. Conant, Susan P. Weinstein
Publikováno v:
Journal of Ultrasound in Medicine. 23:1201-1209
To evaluate the role of quantitative margin features in the computer-aided diagnosis of malignant and benign solid breast masses using sonographic imaging.Sonographic images from 56 patients with 58 biopsy-proven masses were analyzed quantitatively f
Autor:
S. Bruce Malkowicz, Anson Holzer, Peter H. Arger, Chandra M. Sehgal, Keith VanArsdalen, Susan M. Schultz
Publikováno v:
Journal of Ultrasound in Medicine. 23:623-630
Advances in color flow Doppler (CFD) and power Doppler imaging (PDI) have potential for prostate cancer diagnosis. Previous reports based on qualitative assessment suggest that hypervascularity increases likelihood of prostate cancer. Our objective w
Publikováno v:
American Journal of Roentgenology. 179:1395-1399
This study was designed to determine whether significant changes have occurred in the utilization of sonography relative to more expensive cross-sectional imaging techniques in adult patients during a time of increasing reliance on managed care.Use o
Autor:
Peter H. Arger, Michele Reber, Jill E. Langer, Jill E. Jacobs, Lisa Pinheiro, Beverly G. Coleman, Harvey Nisenbaum, Steven C. Horii, Wendy Klein, Susan E. Rowling, Christopher Lyoob, James Fam
Publikováno v:
Journal of Digital Imaging. 15:27-33
The purpose of this study was to determine if the use of a picture archiving and communications system (PACS) in ultrasonography increased the number of images acquired per examination. The hypothesis that such an increase does occur was based on ane
Autor:
Julia A. Zuckerman, Susan E. Rowling, Jill A. Patton, Emily F. Conant, Peter H. Arger, Chandra M. Sehgal
Publikováno v:
Academic Radiology. 8:335-342
Rationale and Objectives This study evaluated the specificity of ultrasound (US) characteristics of solid breast lesions and the interreader variability in their interpretation. Materials and Methods In 61 patients, 70 sonographically visible solid m
Autor:
Elon Y. Kotlar, James I. Kirchoffer, Kenneth C. Bovee, Peter H. Arger, Charles R. Pugh, Chandra M. Sehgal
Publikováno v:
Journal of Ultrasound in Medicine. 18:843-851
We evaluated the changes in flow induced by intrarenal infusion of norepinephrine by an ultrasonographic contrast agent and power Doppler imaging. Hypoperfusion was induced in dogs (N = 5) by infusing norepinephrine directly into the renal artery for
Autor:
Ulrike M. Hamper, Daryl J. Caudry, Robert L. Bree, John V. Tsimikas, Douglas L. Brown, Janet E. Kuhlman, Clare M. Tempany, Robert J. Kurman, Alfred B. Kurtz, Beverly G. Coleman, Peter H. Arger, Richard J. Wechsler, Sheila Sheth, Donald G. Mitchell, Stuart G. Silverman, Evan S. Siegelman, James H. Ellis, Isaac R. Francis, Barbara J. McNeil
Publikováno v:
Radiology. 212:19-27
To determine the optimal imaging modality for diagnosis and staging of ovarian cancer.Two hundred eighty women suspected to have ovarian cancer were enrolled in a prospective study before surgery. Doppler ultrasonography (US), computed tomography (CT