Search Results - "Heiken, J P"

Efficient correction for CT image artifacts caused by objects extending outside the scan field of view by Ohnesorge, B., Flohr, T., Schwarz, K., Heiken, J. P., Bae, K. T.

“…The purpose of this paper is to develop a method of eliminating CT image artifacts generated by objects extending outside the scan field of view, such as obese…”
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Aortic and hepatic contrast medium enhancement at CT. Part II. Effect of reduced cardiac output in a porcine model by Bae, K T, Heiken, J P, Brink, J A

“…To investigate how reduction in cardiac output affects the magnitude and timing of aortic and hepatic contrast medium enhancement during abdominal computed…”
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Aortic and hepatic peak enhancement at CT: effect of contrast medium injection rate--pharmacokinetic analysis and experimental porcine model by Bae, K T, Heiken, J P, Brink, J A

“…To investigate the effect of injection rate of contrast medium on aortic and hepatic peak enhancement at computed tomography. Early pharmacokinetics of…”
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Multiphasic injection method for uniform prolonged vascular enhancement at CT angiography: pharmacokinetic analysis and experimental porcine model by Bae, K T, Tran, H Q, Heiken, J P

“…To determine if multiphasic injection provides uniform, prolonged vascular contrast medium enhancement at computed tomographic (CT) angiography. With a…”
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Aortic and hepatic contrast medium enhancement at CT. Part I. Prediction with a computer model by Bae, K T, Heiken, J P, Brink, J A

“…To develop a physiologic model of contrast medium enhancement by incorporating available physiologic data and contrast medium pharmacokinetics and to predict…”
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Dynamic incremental CT: effect of volume and concentration of contrast material and patient weight on hepatic enhancement by Heiken, J P, Brink, J A, McClennan, B L, Sagel, S S, Crowe, T M, Gaines, M V

“…To develop an individualized approach to the intravenous administration of contrast material for hepatic computed tomography (CT). Two hundred patients were…”
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Adrenal adenomas: relationship between histologic lipid and CT and MR findings by Korobkin, M, Giordano, T J, Brodeur, F J, Francis, I R, Siegelman, E S, Quint, L E, Dunnick, N R, Heiken, J P, Wang, H H

“…To assess the relationship between the quantity of lipid in resected adrenal adenomas and the unenhanced computed tomographic (CT) attenuation number and the…”
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Spiral (helical) CT by Heiken, J P, Brink, J A, Vannier, M W

“…Spiral (helical) computed tomography (CT) involves continuous patient translation during x-ray source rotation and data acquisition. As a result, a volume data…”
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Renal cysts: is attenuation artifactually increased on contrast-enhanced CT images? by Bae, K T, Heiken, J P, Siegel, C L, Bennett, H F

“…To determine if the attenuation values of simple renal cysts are artifactually increased on contrast material-enhanced, clinically acquired spiral computed…”
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CT of cystic renal masses: analysis of diagnostic performance and interobserver variation by Siegel, CL, McFarland, EG, Brink, JA, Fisher, AJ, Humphrey, P, Heiken, JP

“…Our objective was to assess the clinical usefulness and interobserver variability of the Bosniak classification scheme for characterizing a series of…”
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Pancreatic adenocarcinoma: CT versus MR imaging in the evaluation of resectability--report of the Radiology Diagnostic Oncology Group by Megibow, A J, Zhou, X H, Rotterdam, H, Francis, I R, Zerhouni, E A, Balfe, D M, Weinreb, J C, Aisen, A, Kuhlman, J, Heiken, J P

“…To compare findings with computed tomography (CT) and magnetic resonance (MR) imaging in pancreatic adenocarcinoma and to determine optimal pulse sequences for…”
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Colitis: use of CT findings in differential diagnosis by Philpotts, L E, Heiken, J P, Westcott, M A, Gore, R M

“…To determine whether colitides can be differentiated based on computed tomographic (CT) features. The CT scans of 117 patients with documented colitis and…”
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Detection of focal hepatic masses: prospective evaluation with CT, delayed CT, CT during arterial portography, and MR imaging by Heiken, J P, Weyman, P J, Lee, J K, Balfe, D M, Picus, D, Brunt, E M, Flye, M W

“…The sensitivities of contrast medium-enhanced computed tomography (CT), delayed CT (DCT), CT during arterial portography (CTAP), and magnetic resonance (MR)…”
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High-attenuating crescent in abdominal aortic aneurysm wall at CT: a sign of acute or impending rupture by Mehard, W B, Heiken, J P, Sicard, G A

“…To determine whether a peripheral high-attenuating crescent in an abdominal aortic aneurysm (AAA) on unenhanced computed tomographic (CT) scans is a sign of…”
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Spiral CT colonography: reader agreement and diagnostic performance with two- and three-dimensional image-display techniques by McFarland, E G, Brink, J A, Pilgram, T K, Heiken, J P, Balfe, D M, Hirselj, D A, Weinstock, L, Littenberg, B

“…To assess the diagnostic performance and reader agreement with two-dimensional (2D) and three-dimensional (3D) display techniques for detecting colorectal…”
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Visualization of colorectal polyps with spiral CT colography: evaluation of processing parameters with perspective volume rendering by McFarland, E G, Brink, J A, Loh, J, Wang, G, Argiro, V, Balfe, D M, Heiken, J P, Vannier, M W

“…To evaluate two key processing steps for detection of colon polyps with spiral computed tomographic (CT) colography with perspective volume rendering (PVR):…”
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Hepatic spiral CT: reduction of dose of intravenous contrast material by Brink, J A, Heiken, J P, Forman, H P, Sagel, S S, Molina, P L, Brown, P C

“…To assess the potential for reduction of contrast material dose in hepatic spiral computed tomography (CT). Four hundred eighty-seven outpatients were…”
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CT and MR imaging in the staging of colorectal carcinoma: report of the Radiology Diagnostic Oncology Group II by Zerhouni, E A, Rutter, C, Hamilton, S R, Balfe, D M, Megibow, A J, Francis, I R, Moss, A A, Heiken, J P, Tempany, C M, Aisen, A M, Weinreb, J C, Gatsonis, C, McNeil, B J

“…To prospectively evaluate the relative accuracy of computed tomography (CT) and magnetic resonance (MR) imaging in the staging of colorectal carcinoma. CT and…”
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Dynamic contrast-enhanced CT of the liver: comparison of contrast medium injection rates and uniphasic and biphasic injection protocols by Heiken, J P, Brink, J A, McClennan, B L, Sagel, S S, Forman, H P, DiCroce, J

“…To determine the effect of contrast medium injection rate and biphasic versus uniphasic bolus on hepatic parenchymal enhancement at computed tomography (CT),…”
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Technical optimization of spiral CT for depiction of renal artery stenosis: in vitro analysis by Brink, J A, Lim, J T, Wang, G, Heiken, J P, Deyoe, L A, Vannier, M W

“…To determine empirically the effect of scan parameters and postprocessing techniques on depiction accuracy of renal artery stenosis with spiral computed…”
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