R L Levin
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Explore the profile of R L Levin including associated specialties, affiliations and a list of published articles.
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38
Citations
252
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Recent Articles
1.
Frank J, Ostuni J, Yang Y, Shiferaw Y, Patel A, Qin J, et al.
Radiology
. 1999 Jan;
210(1):260-8.
PMID: 9885618
Studies with functional magnetic resonance (MR) imaging produce large unprocessed raw data sets in minutes. The analysis usually requires transferring of the data to an off-line workstation, and this process...
2.
Ostuni J, Santha A, Mattay V, Weinberger D, Levin R, Frank J
J Comput Assist Tomogr
. 1997 Sep;
21(5):803-10.
PMID: 9294580
Purpose: Typically, the final step in volume registration is the reslicing of the volume of interest. The purpose of this work is to examine the effects of this reslicing on...
3.
Ostuni J, Levin R, Frank J, DeCarli C
J Magn Reson Imaging
. 1997 Mar;
7(2):410-5.
PMID: 9090600
A robust, automatic volume registration algorithm based on intensity gradients is presented. This algorithm can successfully perform registrations under conditions of unrelated intervolume voxel intensities, significant object displacements, and/or significant...
4.
Cornelius J, Salloum I, Cornelius M, Perel J, Ehler J, Jarrett P, et al.
Psychopharmacol Bull
. 1995 Jan;
31(2):297-303.
PMID: 7491382
The selective serotonergic agonist fluoxetine has demonstrated efficacy in the treatment of depression and has possible efficacy in the treatment of nondepressed and depressed alcoholics. However, no double-blind, placebo-controlled trials...
5.
Zhang Y, Samulski T, Joines W, Mattiello J, Levin R, Lebihan D
Int J Hyperthermia
. 1992 Mar;
8(2):263-74.
PMID: 1573315
Temperature measurement using magnetic resonance imaging (MRI) of water self-diffusion is investigated. Diffusion images and derived temperatures are obtained in polyacrylamide gel phantom. The temperatures measured from MRI are compared...
6.
Charny C, Levin R
IEEE Trans Biomed Eng
. 1991 Oct;
38(10):1030-9.
PMID: 1761290
Previous studies by the authors have shown that if properly implemented, the Pennes assumptions can be applied to quantify bioheat transfer during extremity heating. Given its relative numerical simplicity and...
7.
Delannoy J, Chen C, Turner R, Levin R, Le Bihan D
Magn Reson Med
. 1991 Jun;
19(2):333-9.
PMID: 1881323
Efficacy and safety considerations for cancer therapy with hyperthermia require accurate temperature measurements throughout the heated volume. We report the use of molecular diffusion, whose temperature dependence is well known....
8.
Delannoy J, Lebihan D, Hoult D, Levin R
Med Phys
. 1990 Sep;
17(5):855-60.
PMID: 2233572
Magnetic resonance imaging (MRI) has recently been proposed as a method to monitor, noninvasively, temperature, blood flow, and cell metabolism during oncologic hyperthermia (HT). To heat and "image" simultaneously, it...
9.
Charny C, Weinbaum S, Levin R
J Biomech Eng
. 1990 Feb;
112(1):80-7.
PMID: 2308308
The predictions of the simplified Weinbaum-Jiji (WJ) bioheat transfer equation in one dimension are compared to those of the complete one-dimensional three-equation model that represented the starting point for the...
10.
Charny C, Levin R
J Biomech Eng
. 1989 Nov;
111(4):263-70.
PMID: 2486363
A bioheat transfer model which computes the spatial variations in the arteriole, venule, and muscle temperatures in a human extremity under both resting and hyperthermic conditions is presented. This model...