Correspondence of closest gradient Voxels—A robust registration algorithm

Autor: John Ostuni, Ronald L. Levin, Charles DeCarli, Joseph A. Frank

Publikováno v: Journal of Magnetic Resonance Imaging. 7:410-415

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 s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5af3b9c6eab19c321bcbae06065ac89
https://doi.org/10.1002/jmri.1880070227

Liquid water and life on Mars

Autor: Gilbert V. Levin, Ronald L. Levin

Publikováno v: SPIE Proceedings.

Many objections have been raised to challenge a biological interpretation of the 1976 Viking Mission Labeled Release (LR) life detection experiment on Mars. Over the years, they have dwindled in the face of the failure of experiments and theories to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b8550cb17713e8044fd5911bd0027db6
https://doi.org/10.1117/12.319849

Multimodality radiological image processing system (MRIPS)/MEDx: a system for medical image processing

Autor: Margaret A. Douglas, Ronald L. Levin

Publikováno v: 23rd AIPR Workshop: Image and Information Systems: Applications and Opportunities.

A new image processing system, MRIPS/MEDx, is being deployed at NIH to facilitate the visualization and analysis of multidimensional images and spectra obtained from different radiological imaging modalities.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1600330541a454c10d1f12c63ca7f030
https://doi.org/10.1117/12.200791

Noninvasive temperature imaging using diffusion MRI

Autor: D. Le Bihan, Ronald L. Levin, Robert Turner, Jose Delannoy, Ching-nien Chen

Publikováno v: Magnetic Resonance in Medicine
Magnetic Resonance in Medicine, Wiley, 1991, 19 (2), pp.333-9
Magnetic Resonance in Medicine, 1991, 19 (2), pp.333-9

International audience; 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 kno

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccfbd1c5bf6f4163f91a7cbcc4fc27c5
https://pubmed.ncbi.nlm.nih.gov/1881323

Aberrant Heating: A Problem in Regional Hyperthermia

Autor: Mark Hagmann, Ronald L. Levin

Publikováno v: IEEE Transactions on Biomedical Engineering. :405-411

A 180 cell block model of man has been used to compute the pattern of energy deposition when radio-frequency applicators are used for treatment of cancer by hyperthermia. When the abdomen is exposed with polarization parallel to the length of the bod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a22ca9842bf74c9bf7a9548779aab6e
https://doi.org/10.1109/tbme.1986.325796