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Your search keyword '"K C, Kent"' showing total 9 results
Start Over Author "K C, Kent" Journal radiology
9 results on '"K C, Kent"'

1. Lower extremity spiral CT angiography versus catheter angiography

Author

K. C. Kent, Ducksoo Kim, M K Stehling, Vassilios Raptopoulos, Max P. Rosen, and J. A. Lawrence

Subjects
Male, medicine.medical_specialty, Constriction, Pathologic, Sensitivity and Specificity, Catheterization, parasitic diseases, Occlusion, Image Processing, Computer-Assisted, medicine, Humans, Radiology, Nuclear Medicine and imaging, Prospective Studies, Spiral, Aged, Aged, 80 and over, Peripheral Vascular Diseases, medicine.diagnostic_test, Vascular disease, business.industry, Angiography, Middle Aged, medicine.disease, Spiral computed tomography, Catheter, Stenosis, medicine.anatomical_structure, Female, Radiology, Tomography, X-Ray Computed, business, Artery
Abstract

Both catheter and spiral computed tomography (CT) angiography of the lower extremity vasculature were performed in six patients with clinically symptomatic peripheral vascular disease. Forty-eight arteries were studied and were independently evaluated for arterial stenoses and occlusions. Compared with catheter arteriography, CT angiography correctly depicted segmental occlusions and significant stenoses (> 50%) in 26 of 28 arteries, yielding a sensitivity of 92.9%, a specificity of 96.2%, and an overall accuracy of 95.5%.

Published
1995
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2. Iliac angioplasty. American College of Radiology. ACR Appropriateness Criteria

Author

J M, Levy, R L, Duszak, E W, Akins, C W, Bakal, D F, Denny, L G, Martin, A, Van Moore, M J, Pentecost, A C, Roberts, R L, Vogelzang, K C, Kent, B A, Perler, M I, Resnick, and J, Richie

Subjects
Leg, Treatment Outcome, Ischemia, Recurrence, Retreatment, Angiography, Humans, Arterial Occlusive Diseases, Iliac Artery, Angioplasty, Balloon
Published
2000

4. Needle biopsy in the thorax. American College of Radiology. ACR Appropriateness Criteria

Author

A, Van Moore, J M, Levy, R L, Duszak, E W, Akins, C W, Bakal, D F, Denny, L G, Martin, M J, Pentecost, A C, Roberts, R L, Vogelzang, K C, Kent, B A, Perler, M I, Resnick, and J, Richie

Subjects
Diagnosis, Differential, Carcinoma, Bronchogenic, Lung Neoplasms, Predictive Value of Tests, Carcinoma, Non-Small-Cell Lung, Contraindications, Lymphatic Metastasis, Biopsy, Needle, Humans, Lymph Nodes, Lung, Neoplasm Staging
Published
2000

6. Thrombolysis for lower extremity arterial and graft occlusions. American College of Radiology. ACR Appropriateness Criteria

Author

J M, Levy, R L, Duszak, E W, Akins, C W, Bakal, D F, Denny, L G, Martin, A, Van Moore, M J, Pentecost, A C, Roberts, R L, Vogelzang, K C, Kent, B A, Perler, M I, Resnick, J, Richie, and G, Becker

Subjects
Leg, Treatment Outcome, Dose-Response Relationship, Drug, Ischemia, Angiography, Graft Occlusion, Vascular, Humans, Arterial Occlusive Diseases, Thrombolytic Therapy, Ultrasonography, Doppler, Infusions, Intravenous, Angioplasty, Balloon
Published
2000

7. Percutaneous catheter drainage of infected intra-abdominal fluid collections. American College of Radiology. ACR Appropriateness Criteria

Author

R L, Duszak, J M, Levy, E W, Akins, C W, Bakal, D D, Denny, L G, Martin, A, Van Moore, M J, Pentecost, A C, Roberts, R L, Vogelzang, K C, Kent, B A, Perler, M I, Resnick, J, Richie, and E, Priest

Subjects
Abdominal Abscess, Catheters, Indwelling, Treatment Outcome, Critical Care, Case-Control Studies, Drainage, Humans, Paracentesis, Tomography, X-Ray Computed, Retrospective Studies
Published
2000

9. Dynamic contrast-enhanced subtraction MR angiography of the lower extremities: initial evaluation with a multisection two-dimensional time-of-flight sequence

Author

E. J. Sax, Ducksso Kim, Robert R. Edelman, K. C. Kent, M. K. Adamis, Piotr A. Wielopolski, and Wei Li

Subjects
Adult, Gadolinium DTPA, Male, medicine.medical_specialty, media_common.quotation_subject, Contrast Media, Image subtraction, Arterial Occlusive Diseases, Gadolinium, Constriction, Pathologic, Sensitivity and Specificity, Meglumine, Heterocyclic Compounds, medicine, Organometallic Compounds, Contrast enhancement ratio, Contrast (vision), Humans, Radiology, Nuclear Medicine and imaging, media_common, Aged, Aged, 80 and over, Leg, medicine.diagnostic_test, business.industry, Echo-Planar Imaging, Subtraction, Mr angiography, Angiography, Magnetic resonance imaging, Arteries, Middle Aged, Pentetic Acid, Image Enhancement, Models, Structural, Dynamic contrast, Drug Combinations, Evaluation Studies as Topic, Subtraction Technique, Feasibility Studies, Female, Radiology, business, Nuclear medicine, Magnetic Resonance Angiography
Abstract

To determine the clinical feasibility of a contrast material--enhanced two-dimensional (2D) magnetic resonance (MR) angiographic sequence in lower extremity arteries.Four healthy volunteers and 12 patients underwent dynamic contrast-enhanced MR angiography; all patients also underwent conventional angiography. A 2D multisection gradient-echo sequence with image subtraction was used for all MR imaging examinations.Oblique-coronal contrast-enhanced MR angiography was completed in less than 4 minutes, with a 256 x 512 matrix. The arterial contrast enhancement ratio was 2.0 +/- 0.8 (standard deviation), and the pre- and post-contrast contrast-to-noise ratios were 2.1 +/- 13.8 and 46.2 +/- 18.7, respectively. The sensitivity for MR angiography was 100% and specificity was 69% for distinction of vessels with greater than 50% stenoses from normal or mildly stenotic vessels.Dynamic contrast-enhanced 2D MR angiography is capable of increasing intraarterial signal intensity and depicting small vessel anatomy of the lower extremities over a large field of view in a short imaging time.

Published
1995

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