Search Results - "Frazin, L"

Numerical study on the effect of secondary flow in the human aorta on local shear stresses in abdominal aortic branches by Shipkowitz, Tanya, Rodgers, V.G.J., Frazin, Lee J., Chandran, K.B.

“…Flow in the aortic arch is characterized primarily by the presence of a strong secondary flow superimposed over the axial flow, skewed axial velocity profiles…”
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Transesophageal echocardiographic detection of thoracic aorta dissection extending into the celiac artery by Frazin, Lee J

“…Special positioning of a transesophageal echocardiography probe allows visualization of the superior portion of the abdominal aorta including the celiac artery…”
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Functional chiral asymmetry in descending thoracic aorta by FRAZIN, L. J, LANZA, G, VONESH, M, KHASHO, F, SPITZZERI, C, MCGEE, S, MEHLMAN, D, CHANDRAN, K. B, TALANO, J, MCPHERSON, D

“…To determine whether rotational blood flow or chiral asymmetry exists in the human descending thoracic aorta, we established the ability of color Doppler…”
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Confirmation and initial documentation of thoracic and abdominal aortic helical flow. An ultrasound study by Frazin, L J, Vonesh, M J, Chandran, K B, Shipkowitz, T, Yaacoub, A S, McPherson, D D

“…Aortic helical flow may play an important role in plaque deposition, dissection formation, and organ perfusion. The authors have previously demonstrated, using…”
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Feasibility of transgastric ultrasonography of the abdominal aorta by Keen, Richard R., Yao, James S.T., Astleford, Patricia, Blackburn, Donna, Frazin, Lee J.

“…Purpose: Transesophageal echocardiography provides detailed images of the thoracic aorta, but imaging of the abdominal aorta and its branches does not occur…”
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Numerical study on the effect of steady axial flow development in the human aorta on local shear stresses in abdominal aortic branches by Shipkowitz, Tanya, Rodgers, V.G.J., Frazin, Lee J., Chandran, K.B.

“…The three-dimensional flow through a rigid model of the human abdominal aorta complete with iliac and renal arteries was predicted numerically using the…”
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Atherosclerotic plaque evolution in the descending thoracic aorta in familial hypercholesterolemic patients : a transesophageal echo study by HERRERA, C. J, FRAZIN, L. J, DAU, P. C, DEFRINO, P, STONE, N. J, MEHLMAN, D. J, VONESH, M. J, TALANO, J. V, MCPHERSON, D. D

“…We explored the concept that transesophageal echocardiography can be used as a tool to detect, characterize, and study plaque morphology in the descending…”
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Esophageal echocardiography by Frazin, L, Talano, J V, Stephanides, L, Loeb, H S, Kopel, L, Gunnar, R M

“…Esophageal echocardiography has been developed for use in patients with chronic obstructive pulmonary disease and is a safe diagnostic procedure which provides…”
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Cannulation of the aortic branches using ultrasound guidance. An animal study by Frazin, L J, Wiet, S P, Yaacoub, A S, Kane, B J, Greene, R, Vonesh, M J

“…Catheter placement by ultrasound may reduce radiation, improve positioning, and allow the use of echo contrast agents for diagnostic and therapeutic…”
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Functional chiral asymmetry in the descending thoracic aorta by Frazin, L J, McPherson, D D, Mehlman, D J, Chandran, K B

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Early CT findings after interstitial radiation therapy for primary malignant brain tumors by Tolly, TL, Bruckman, JE, Czarnecki, DJ, Frazin, LJ, Lewis, HJ, Richards, MJ, Adamkiewicz, JJ, Jr

“…The CT findings after interstitial radiation therapy for brain tumors have not been extensively described. We evaluated retrospectively the CT scans of 13…”
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Feasibility of transcolonic and transgastric abdominal vascular ultrasound by Frazin, L J, Siddiqui, M, Venugopalan, K, Pop, P, Vonesh, M J, McPherson, D D

“…Abdominal vascular ultrasound is hampered by tissue attenuation. To improve imaging, the feasibility of real-time color Doppler transcolonic and transgastric…”
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A Doppler guided retrograde catheterization system by Frazin, L J, Vonesh, M J, Khasho, F, Lanza, G, Chandran, K B, Talano, J V, McPherson, D D

“…A Doppler guided retrograde catheterization system was developed to accurately catheterize the aortic root and left ventricular chamber without X-ray. This…”
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Doppler catheter tip localization using color enhancement by Frazin, L J, Vonesh, M J, Yaacoub, A S, Kane, B J, Greene, R, Kemper, W S, Guberek, M, McPherson, D D

“…The objective of this research was to determine if the ultrasound emissions of the Doppler catheter can be used to locate its position in 3 dimensions by…”
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Editorial: TEE of the Descending Aorta: Anatomic Coherence Provided by the Celiac Artery by Frazin, Leon J.

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522 Evaluation of left ventricular wall motion abnormalities by limited hand-carried echocardiography in patients with acute coronary syndrome by KUZNETSOV, V, KOZHURINA, A, KRINOCHKIN, D, PLUSNIN, A, FRAZIN, L

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Plaque and structural characteristics of the descending thoracic aorta using transesophageal echocardiography by Lanza, G M, Zabalgoitia-Reyes, M, Frazin, L, Meyers, S N, Spitzzeri, C L, Vonesh, M J, Mehlman, D J, Talano, J V, McPherson, D D

“…The in vivo acoustic and structural characteristics of atherosclerosis in the descending thoracic aorta have not been well delineated. We prospectively…”
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Dual-Channel Facilitation of the 99mTc Radiocardiogram by Kaplan, Ervin, Hochner, Gad, Barnes, W. Earl, Arnold, James S, Shponka, Samuel, Mayron, Lewis W, Frazin, Leon

“…A refinement of the radionuclide-angiocardiogram is described using a low deadtime scintillation camera and hardwire data storage, processing, and display…”
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Definition of myocardial perfusion by continuous infusion of krypton-81m by Kaplan, Ervin, Mayron, Lewis W., Friedman, Arnold M., Gindler, James E., Frazin, Leon, Moran, John M., Loeb, Henry, Gunnar, Rolf M.

“…Krypton-81m, a radionuclide emitting a 190 kev gamma ray, has a half-life of 13 seconds. It is a radioisotope of an inert water-soluble noble gas and is…”
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Various Types of Systolic Clicks in Patients with Muscular Subaortic Stenosis by LUISADA, Aldo A., FRAZIN, Leon, SINGHAL, Achala, NUNEZ, Aida

“…Four clinical cases of subaortic hypertrophic muscular stenosis are discussed. All four, in addition to a loud systolic murmur, had a loud systolic click…”
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