Zobrazeno 1 - 10
of 18
pro vyhledávání: '"L D Cromwell"'
Publikováno v:
Magnetic Resonance in Medicine. 21:288-295
A new method of filtering MR images is presented that uses wavelet transforms instead of Fourier transforms. The new filtering method does not reduce the sharpness of edges. However, the new method does eliminate any small structures that are similar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a2cd0782d6c367d8903378b9206b9c8
https://doi.org/10.1002/mrm.1910210213
https://doi.org/10.1002/mrm.1910210213
Publikováno v:
AJNR Am J Neuroradiol
BACKGROUND AND PURPOSE: Injected air bubbles are a well-accepted cause of stroke during cerebral angiography. We used an in vitro model to determine the frequency of occurrence of air emboli during catheter flushing using conventional hardware and te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6fb928e038783c60d71e317b30cfd8f8
https://pubmed.ncbi.nlm.nih.gov/11290483
https://pubmed.ncbi.nlm.nih.gov/11290483
Publikováno v:
AJNR Am J Neuroradiol
We present two cases of surgically proved colloid cysts that were more apparent on CT scans than on MR images. These cysts, while hyperdense on CT scans, were nearly isointense with brain on multiple MR sequences. This relative lack of visibility rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9c134d63fb7ec2e06e485e80c58f0561
https://pubmed.ncbi.nlm.nih.gov/9613503
https://pubmed.ncbi.nlm.nih.gov/9613503
Publikováno v:
Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society. 15(4)
A patient with paralysis of upward gaze and downward gaze, absent oculocephalic reflexes, and absent vertical saccades also demonstrated intermittent stupor over the first 9 days of presentation. Magnetic resonance imaging (MRI) demonstrated an infar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4a82a82d55b8b94aeda63a8916f34260
https://pubmed.ncbi.nlm.nih.gov/8748560
https://pubmed.ncbi.nlm.nih.gov/8748560
Autor:
L. D. Cromwell, Alexander C. Mamourian
Publikováno v:
American Journal of Roentgenology. 165:225-226
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0456ac9a0316c8e9aad3012da590c0bc
https://doi.org/10.2214/ajr.165.1.7785611
https://doi.org/10.2214/ajr.165.1.7785611
Autor:
Albert A. Moss, L D Cromwell, W Hastrup, Bruce A. Porter, Michael L. Richardson, D O Olson, G E Wesbey
Publikováno v:
RadioGraphics. 7:271-287
Many MR artifacts are not understandable in terms of previous imaging experience. A variety of artifacts is presented here; their origins and elimination are discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b37990d9d3211777dccf2ee6d3c8ef3
https://doi.org/10.1148/radiographics.7.2.3448635
https://doi.org/10.1148/radiographics.7.2.3448635
Publikováno v:
Neuroradiology. 10:131-135
The femoral artery approach to cerebral angiography has become well accepted. Some patients, however, are not candidates for femoral catheterization because of severe arteriosclerosis. One hundred cerebral angiograms were performed in 88 severely art
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f38114c5d8d3cf9f8d2da890105da655
https://doi.org/10.1007/bf00341813
https://doi.org/10.1007/bf00341813
Publikováno v:
The American surgeon. 43(6)
A 56-year-old man had retinal artery embolization from a carotid artery atheroma. Complete occlusion of the internal carotid artery occurred during cerebral angiography, but the patient developed no acute symptoms of cerebral ischemia. The patient im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::15958f8144fc68df430c2ad36ce2032f
https://pubmed.ncbi.nlm.nih.gov/869327
https://pubmed.ncbi.nlm.nih.gov/869327
Autor:
J W Keating, L D Cromwell
Publikováno v:
AJR. American journal of roentgenology. 131(2)
Neuroblastoma, which is primarily an extracranial disease, has remote manifestations which can be confusing. Neurologic signs and symptoms such as opsoclonus (dancing eyes), ataxia, blindness, and cord paralysis may precede by several months the mani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d328b96cce6580a6f0e7600b048e96a
https://pubmed.ncbi.nlm.nih.gov/98012
https://pubmed.ncbi.nlm.nih.gov/98012
Autor:
L D Cromwell, Conrad V. Kufta, A B Pleet, Paul E. McKeever, K G Rieth, Paul L. Kornblith, G. Di Chiro
Publikováno v:
Journal of neurosurgery. 55(4)
✓ Computerized tomography (CT) has made it easier to distinguish tumoral from nontumoral diseases of the central nervous system. In the presence of mass effect, however, this distinction may be difficult or impossible to make. Primary demyelinating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::500412fa182bdf498a25de43bc20269e
https://pubmed.ncbi.nlm.nih.gov/7277009
https://pubmed.ncbi.nlm.nih.gov/7277009