Iliopsoas impingement on the acetabular component: radiologic and computed tomography findings of a rare hip prosthesis complication in eight cases.

abstract：:Effects of inaccurate attenuation correction on quantitation in positron emission computed tomography were investigated by both computer simulation and theoretical analysis, followed by experimental verification with phantom measurements. It was found that, due to the finite width of detector responses, compensation o...

journal_title：Journal of computer assisted tomography

authors： Huang SC,Hoffman EJ,Phelps ME,Kuhl DE

更新日期：1979-12-01 00:00:00

abstract：:A whole-body, multislice positron emission tomograph, Positologica III, has been constructed based on a sampling method "positology." The scanner consists of four continuously rotating detector rings with 192 bismuth germanate (BGO) crystals (12 X 24 X 24 mm) arranged at irregular intervals along each ring, providing ...

journal_title：Journal of computer assisted tomography

authors： Senda M,Tamaki N,Yonekura Y,Tanada S,Murata K,Hayashi N,Fujita T,Saji H,Konishi J,Torizuka K

更新日期：1985-09-01 00:00:00

abstract：PURPOSE:The purpose of this work was to assess whether easily obtained clinical parameters can predict optimal scan delay for contrast-enhanced spiral CT of pulmonary arteries and to compare image quality between individualized contrast timing versus a fixed scan delay. METHOD:We used an individualized delay in 85 pat...

journal_title：Journal of computer assisted tomography

authors： Hartmann IJ,Lo RT,Bakker J,de Monyé W,van Waes PF,Pattynama PM

更新日期：2002-01-01 00:00:00

abstract：:High-resolution CT (HRCT) and chest radiographs were compared in nine patients with miliary lung disease. In all cases, miliary disease was documented to be infectious in etiology; six of these patients proved to be human immunodeficiency virus (HIV) positive. A mixture of both sharply and poorly defined 1-3 mm nodule...

journal_title：Journal of computer assisted tomography

authors： McGuinness G,Naidich DP,Jagirdar J,Leitman B,McCauley DI

更新日期：1992-05-01 00:00:00

abstract：PURPOSE:Our goal was to review the CT findings and to help define the role of CT in the evaluation of appendicitis in children. METHOD:Of 730 children with surgically proven appendicitis, 22 underwent preoperative CT evaluation. Their CT scans and operative and pathology records were retrospectively reviewed. The CT s...

journal_title：Journal of computer assisted tomography

authors： Jabra AA,Shalaby-Rana EI,Fishman EK

更新日期：1997-07-01 00:00:00

abstract：:A 72-year-old woman with previously symptomatic internal carotid artery occlusion subsequently presented with an acute hemispheric deficit. The patient was initially diagnosed as having an ischemic infarction but eventually was shown to have a subacute subdural hematoma with delay in surgical evacuation and a major pe...

journal_title：Journal of computer assisted tomography

authors： Pascuzzi RM,Boyko OB,Voelker JL

更新日期：1989-09-01 00:00:00

abstract：:We describe a case of disruption of the blood-brain barrier (BBB) by nonionic, low osmolality contrast medium after abdominal angiography. One plausible explanation of this event is that acute hypertension during angiography may have increased the BBB permeability, allowing the contrast medium to leak across it. ...

journal_title：Journal of computer assisted tomography

authors： Okazaki H,Tanaka K,Shishido T,Nagase H,Hoshino M,Takebayashi S,Endoh O,Takamura Y

更新日期：1989-09-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to optimize chest port contrast injections using stepwise improvements. METHODS:Ex vivo injections were tested. Two hundred scans using power port injections were then evaluated. RESULTS:The highest flow rate was achieved using a 19G access needle, larger diameter tubing, and warme...

journal_title：Journal of computer assisted tomography

authors： Fielding JC,Wagner-Bartak NA,Javadi S,Morani AC,Ganeshan D,Ibarra-Rovira JJ,Liu X,Jensen CT

更新日期：2020-11-01 00:00:00

abstract：:Early studies evaluating the utility of Gd-diethylenetriamine pentaacetic acid (DTPA) enhanced MR imaging for characterization of musculoskeletal masses have demonstrated inconsistent and often conflicting results. In this study a new method, dynamic Gd-DTPA enhanced rapid acquisition spin echo MR imaging, was impleme...

journal_title：Journal of computer assisted tomography

authors： Mirowitz SA,Totty WG,Lee JK

更新日期：1992-01-01 00:00:00

abstract：OBJECTIVE:Compared the performance of computer-aided detection (CAD) software for quantitative analysis of airway using computed tomography (CT) images reconstructed with versions of model-based iterative reconstruction (MBIR) that either balances spatial and density resolution (MBIRSTND) or prefers spatial resolution ...

journal_title：Journal of computer assisted tomography

authors： Jia Y,Zhai B,He T,Yu Y,Yu N,Duan H,Yang C,Li JY

更新日期：2021-01-01 00:00:00

abstract：:We report a case of abnormal pancreaticobiliary junction (APBJ), in which three-dimensional (3D) drip infusion cholangiography (DIC) computed tomography (CT) was useful to make the diagnosis. The 3D DIC CT clearly demonstrated reflux of the contrast material into the main pancreatic duct as well as a long common chann...

journal_title：Journal of computer assisted tomography

authors： Nambu A,Ichikawa T,Katoh K,Araki T

更新日期：2001-07-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare quantitative and qualitative measures of aortic, cardiac, and respiratory motion artifact between high-pitch dual-source (DS) and single-source (SS) computed tomography pulmonary angiography (CTPA) protocols. METHODS:This institutional review board-approved, Health Insu...

journal_title：Journal of computer assisted tomography

authors： Bunch PM,Fulwadhva UP,Wortman JR,Primak AN,Madan R,Steigner ML,Sodickson AD

更新日期：2018-07-01 00:00:00

abstract：:The preoperative temporal bone CT scans of 13 patients with surgically proven acquired cholesteatoma were retrospectively reviewed for bony erosions and for extension beyond the temporal bone. A correlation with the clinical and surgical findings was also carried out. The CT findings are discussed and illustrated as w...

journal_title：Journal of computer assisted tomography

authors： Johnson DW,Hinshaw DB Jr,Hasso AN,Thompson JR,Stewart CE 3rd

更新日期：1985-05-01 00:00:00

abstract：:Neuroradiological findings in two cases of histologically confirmed intracranial sarcoidosis are presented, one with periaqueductal granulomata causing aqueduct obstruction. The granulomatous aggregation was of slightly greater attenuation than normal brain parenchyma and did enhance homogeneously following contrast m...

journal_title：Journal of computer assisted tomography

authors： Kumpe DA,Rao CV,Garcia JH,Heck AF

更新日期：1979-06-01 00:00:00

abstract：:Fast MR techniques and the application of water-soluble contrast agents allow the simultaneous examination of renal morphology and the functional aspects of glomerular filtration using bolus injections of Gd-DTPA. Spatial resolution is sufficient to resolve individual renal pyramids, but the quantitative examination o...

journal_title：Journal of computer assisted tomography

authors： von Schulthess GK,Kuoni W,Gerig G,Wüthrich R,Duewell S,Krestin G

更新日期：1991-09-01 00:00:00

abstract：:Image quality in cranial computed tomography (CT) was evaluated with phantom and patient studies on both a first (single beam) and a second (multiple beam) generation scanner. When comparable radiation doses were used, there were only minor differences in resolution, low contrast detectability, and noise level. The pa...

journal_title：Journal of computer assisted tomography

authors： Zatz LM

更新日期：1978-07-01 00:00:00

abstract：:The computed tomographic (CT) appearance of global infarction of the kidney has not been previously reported. We report a clinically proven case as well as two other cases with clinical and radiographic findings consistent with renal infarction. The CT appearance of global renal infarction corresponds with its convent...

journal_title：Journal of computer assisted tomography

authors： Glazer GM,London SS

更新日期：1981-12-01 00:00:00

abstract：OBJECTIVE:The objective of the study was to characterize the enhancement pattern of hyperfunctioning parathyroid adenomas on multiphase multidetector computed tomography (CT) or 4-dimensional CT. METHODS:We retrospectively studied the enhancement patterns of 48 pathologically confirmed parathyroid adenomas with 4-dime...

journal_title：Journal of computer assisted tomography

authors： Vu TH,Guha-Thakurta N,Harrell RK,Ahmed S,Kumar AJ,Johnson VE,Perrier ND,Hamberg LM,Hunter GJ,Schellingerhout D

更新日期：2011-09-01 00:00:00

abstract：OBJECTIVE:Our objective was to determine and report the CT findings in patients with diffuse pulmonary lymphangiomatosis (DPL). MATERIALS AND METHODS:We retrospectively reviewed the CT findings in eight patients with pathologically proven DPL. The patients ranged in age from 3 to 35 years (mean 15 years) and included ...

journal_title：Journal of computer assisted tomography

authors： Swensen SJ,Hartman TE,Mayo JR,Colby TV,Tazelaar HD,Müller NL

更新日期：1995-05-01 00:00:00

abstract：:A 31-year-old woman with an aneurysmal bone cyst of the L1 vertebral body proved by biopsy and studied by plain lumbar spine roentgenography, radionuclide studies, myelography, and CT is presented. The unusual location of involvement of the vertebral body alone and the difficulty in differential diagnosis between aneu...

journal_title：Journal of computer assisted tomography

authors： Wang AM,Lipson SJ,Haykal HA,Weinberg DS,Zamani AA,Rumbaugh CL

更新日期：1984-12-01 00:00:00

abstract：PURPOSE:To investigate the optimal dual-energy reconstruction technique for the visualization of the hepatic arterial system during dual-energy multidetector computed tomographic (MDCT) angiography of the liver. MATERIALS AND METHODS:Twenty-nine nonconsecutive patients underwent dual-energy MDCT angiography of the liv...

journal_title：Journal of computer assisted tomography

authors： Marin D,Caywood DT,Mileto A,Reiner CS,Seaman DM,Patel BN,Boll DT,Nelson RC

更新日期：2015-09-01 00:00:00

abstract：OBJECTIVE:The aim of our study was to evaluate the diagnostic performance of cardiac computed tomography (CCT) in the evaluation of coronary artery stenosis in patients with ascending aorta aneurysm detected at transthoracic echocardiography. METHODS:We conducted a retrospective analysis of patients with an aneurysm 4...

journal_title：Journal of computer assisted tomography

authors： La Grutta L,Toia P,Galia M,Grassedonio E,Ajello D,Novo G,Bartolotta TV,Maffei E,Novo S,Cademartiri F,Lagalla R,Midiri M

更新日期：2016-05-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to classify the types of medial synovial fold of the posterior cruciate ligament (PCL) on magnetic resonance imaging (MRI) and to identify the relationships between fold type and impingement of the PCL on arthroscopy. SUBJECTS AND METHODS:Ninety-nine patients who underwent knee ...

journal_title：Journal of computer assisted tomography

authors： Yoon KH,Tak DH,Park JS,Joo YB,Lee S

更新日期：2016-09-01 00:00:00

abstract：OBJECTIVE:This cross-sectional study assessed the prognostic implications of computed tomography (CT) coronary artery calcification (CAC), independent of emphysema, in patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS:Coronary artery calcification and emphysema were assessed on noncontr...

journal_title：Journal of computer assisted tomography

authors： OʼHare PE,Ayres JF,OʼRourke RL,Slaughter RE,Marshall HM,Bowman RV,Fong KM,Yang IA

更新日期：2014-09-01 00:00:00

abstract：:This is the seventh and last in a series of studies related to procedure-oriented joint anatomy. This article reviews the anatomy of the foot and its relationship to procedures in the clinical setting with or without ultrasound guidance. Anatomically correct axial schematics allow injections to be envisioned relative ...

journal_title：Journal of computer assisted tomography

authors： Chiou-Tan F,Furr-Stimming E,John J,Harrell JS,Zhang H,Taber KH

更新日期：2015-01-01 00:00:00

abstract：:With computer reformatting techniques, it is possible to project any lesion into its proper position with respect to the reformatted midsagittal computed tomography (CT) plane, the reformatted biparietal CT plane, or any other useful reference plane. The calvarial contour depicted on the reformatted midsagittal CT ima...

journal_title：Journal of computer assisted tomography

authors： Naidich TP,Yu RH,King DG,Wholahan JD

更新日期：1980-10-01 00:00:00

abstract：PURPOSE:The purpose of this study was to assess the diagnostic yield of computed tomography (CT)-guided core needle biopsy (CNB) for initial transbronchial biopsy (TBB)-based nondiagnostic lung lesions. METHODS:From January 2014 to December 2017, 101 consecutive patients with initial TBB-based nondiagnostic lung lesio...

journal_title：Journal of computer assisted tomography

authors： Li QK,Ding YK,Liu Y,Xia FF,Li L,Fu YF

更新日期：2020-03-01 00:00:00

abstract：PURPOSE:The purpose of this work was to define the characteristic MR features of colorectal mucinous carcinomas and to correlate the mucin pool with the signal intensity of this tumor. METHOD:MRI of 12 cases of pathologically proven colorectal carcinoma containing mucin was evaluated. We analyzed the signal intensity ...

journal_title：Journal of computer assisted tomography

authors： Kim MJ,Huh YM,Park YN,Kim NK,Kim DJ,Chung JJ,Kim WH,Yoo HS,Lee JT

更新日期：1999-03-01 00:00:00

abstract：:Prenatal diagnosis of monoamnionicity is necessary for optimal care of a twin gestation. When the fetuses are discordant for a lethal anomaly, unequivocal confirmation is imperative. Ultrasound evaluation of our patient revealed a twin gestation discordant for anencephaly and with possible monoamnionicity. When sonogr...

journal_title：Journal of computer assisted tomography

authors： Wax JR,Smith JF,Floyd RC

更新日期：1994-01-01 00:00:00

abstract：:The clinical records and radiologic findings in six patients with spontaneous (nontraumatic) intrahepatic and subcapsular hemorrhage were reviewed. Four patients had underlying liver lesions (hepatocellular carcinoma and metastasis from B-cell lymphoma in one patient each and hepatic adenoma in two other patients). On...

journal_title：Journal of computer assisted tomography

authors： Merine D,Fishman EK,Zerhouni EA

更新日期：1988-05-01 00:00:00