MR evaluation of the temporomandibular joint in juvenile rheumatoid arthritis.

abstract：:We aim to review the imaging appearance of peripheral nerve sheath tumors (PNSTs) of head and neck according to updated fourth edition of World Health Organization classification. Peripheral nerve sheath tumor can be sporadic or associated with neurofibromatosis type 1, neurofibromatosis type 2, and schwannomatosis. S...

journal_title：Journal of computer assisted tomography

authors： Abdel Razek AAK,Gamaleldin OA,Elsebaie NA

更新日期：2020-11-01 00:00:00

abstract：:The aim in positron emission tomography is to provide quantitative information about the uptake, localization, and turnover of labeled molecules in the human body. Instruments designed for this purpose are based on the coincidence detection of the emitted annihilation photons. In this paper, we examine those instrumen...

journal_title：Journal of computer assisted tomography

authors： Kouris K,Garnett ES,Herman GT

更新日期：1981-10-01 00:00:00

abstract：PURPOSE:The purpose of this work was to evaluate the helical CT and CT angiography (CTA) findings of anomalous systemic artery (ASA) to the basal segments of the left lower lobe (LLL). METHOD:Three patients (two had hemoptysis, one was asymptomatic) with blotchy nodular density in the LLL revealed on chest radiographs...

journal_title：Journal of computer assisted tomography

authors： Ko SF,Ng SH,Lee TY,Wan YL,Lee CM,Hsieh MJ,Chen MC

更新日期：2000-11-01 00:00:00

abstract：OBJECTIVE:To describe the magnetic resonance imaging characteristics of supratentorial ependymomas. METHODS:The magnetic resonance imaging and computed tomography imaging characteristics of 49 cases of supratentorial ependymomas were analyzed retrospectively. The location, size, degree of perilesional edema, gross app...

journal_title：Journal of computer assisted tomography

authors： Jabeen S,Konar SK,Prasad C,Mahadevan A,Beniwal M,Sadashiva N,Santosh V,Saini J

更新日期：2020-09-01 00:00:00

abstract：:Two cases of non-Hodgkin lymphoma (NHL), one AIDS related, with hepatic involvement manifesting as infiltrating mass-like periportal intrahepatic low attenuation on CT are described. One case demonstrated mass effect with compression of adjacent bile ducts causing jaundice. NHL should be included in the differential d...

journal_title：Journal of computer assisted tomography

authors： Coakley FV,O'Reilly EM,Schwartz LH,Panicek DM,Castellino RA

更新日期：1997-09-01 00:00:00

abstract：PURPOSE:The goal of this study was to evaluate a newly developed semiautomated contour detection algorithm for the quantitative analysis of cardiovascular MRI. METHOD:Left ventricular function parameters derived from automatically detected endocardial and epicardial contours were compared with results derived from man...

journal_title：Journal of computer assisted tomography

authors： van der Geest RJ,Buller VG,Jansen E,Lamb HJ,Baur LH,van der Wall EE,de Roos A,Reiber JH

更新日期：1997-09-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to compare image quality for abdominal computed tomographic (CT) images acquired at 200 and 50 mA s and reconstructed with image-based iterative reconstruction. MATERIALS AND METHODS:In this institutional review board-approved prospective study, 22 patients (mean [SD] age, 64....

journal_title：Journal of computer assisted tomography

authors： Pourjabbar S,Singh S,Singh AK,Johnston RP,Shenoy-Bhangle AS,Do S,Padole A,Blake MA,Persson A,Kalra MK

更新日期：2014-01-01 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：:In 95% of cases, computed tomography (CT) enables the articular capsule of the hip joint to be directly visualized. Articular effusion in the hip joint can also be recognized in the CT image. In inflammatory arthritis and active osteoarthrosis of the hip joint, thickening of the articular capsule or articular effusion...

journal_title：Journal of computer assisted tomography

authors： Dihlmann W,Nebel G

更新日期：1983-04-01 00:00:00

abstract：:We present two cases demonstrating, on CT examination, heavily calcified mass lesions associated with malignant pleural mesothelioma in workers occupationally exposed to asbestos. These masses proved to be osteogenic sarcomatous degeneration within mesotheliomas. The observation of dense calcification within a pleural...

journal_title：Journal of computer assisted tomography

authors： Raizon A,Schwartz A,Hix W,Rockoff SD

更新日期：1996-01-01 00:00:00

abstract：:Eighteen patients with moyamoya disease were examined by computed tomography (CT). At the first examination, CT findings were normal in one patient and abnormal in 17 patients. Significant abnormalities on precontrast CT were characterized by low density lesions in 14, ventricular dilatation in 9, and cerebral atrophy...

journal_title：Journal of computer assisted tomography

authors： Takeuchi S,Kobayashi K,Tsuchida T,Imamura H,Tanaka R,Ito J

更新日期：1982-02-01 00:00:00

abstract：OBJECTIVE:Evaluation of left ventricular function using electrocardiogram (ECG)-gated multidetector row CT (MDCT) by using 3 different volumetric assessment methods in comparison to assessment of the left ventricular function by invasive ventriculography. METHODS:Thirty patients with suspected or known coronary artery...

journal_title：Journal of computer assisted tomography

authors： Hundt W,Siebert K,Wintersperger BJ,Becker CR,Knez A,Reiser MF,Rubin GD

更新日期：2005-05-01 00:00:00

abstract：:A system of computer programs is described which, for the first time, is able to use computerized tomographic data to automatically locate, measure, and describe anatomical structures of interest with accuracy and consistency. Input to the system consists of any digitized radiographic data. Computer assisted tomograph...

journal_title：Journal of computer assisted tomography

authors： Bajcsy R,Lieberson R,Reivich M

更新日期：1983-08-01 00:00:00

abstract：PURPOSE:Typically, the final step in volume registration is the reslicing of the volume of interest. The purpose of this work is to examine the effects of this reslicing on functional MRI (fMRI) data using different interpolation methods. METHOD:Functional whole-brain echo planar imaging (EPI) volumes were resliced us...

journal_title：Journal of computer assisted tomography

authors： Ostuni JL,Santha AK,Mattay VS,Weinberger DR,Levin RL,Frank JA

更新日期：1997-09-01 00:00:00

abstract：:Due to the low prevalence of hemangiopericytomas (HPCs), data on the biophysiological characteristics of this tumor are rare. Positron emission tomography (PET) demonstrated a sixfold increased uptake of [11C]methionine and hyperperfusion in the HPC, whereas glucose utilization was decreased in this area. This low glu...

journal_title：Journal of computer assisted tomography

authors： Kracht LW,Bauer A,Herholz K,Terstegge K,Friese M,Schröder R,Heiss WD

更新日期：1999-05-01 00:00:00

abstract：:Aeration of the middle turbinate, termed "concha bullosa," is a common anatomical variant of intranasal anatomy. Of 320 patients evaluated for sinus disease with coronal CT, 34% had concha bullosa on at least one side. The overall incidence of inflammatory disease in the ostiomeatal complex in these symptomatic patien...

journal_title：Journal of computer assisted tomography

authors： Zinreich SJ,Mattox DE,Kennedy DW,Chisholm HL,Diffley DM,Rosenbaum AE

更新日期：1988-09-01 00:00:00

abstract：:We report imaging findings of renal matrix stones in a patient with congenital ureteropelvic junction obstruction associated with urinary tract infection. The stones were composed of a calcified center and a non-calcified peripheral matrix that was slightly high attenuated on CT and nonshadowing on US. ...

journal_title：Journal of computer assisted tomography

authors： Kim SH,Lee SE,Park IA

更新日期：1996-05-01 00:00:00

abstract：:A technique is described that permits the 19F nuclear magnetic resonance (NMR) imaging of the vascular system in animals that have been infused with certain perfluorocarbon blood substitutes. The essence of the technique is the selection for imaging of a narrow group of spectral lines from the fluorocarbon using a com...

journal_title：Journal of computer assisted tomography

authors： Joseph PM,Fishman JE,Mukherji B,Sloviter HA

更新日期：1985-11-01 00:00:00

abstract：OBJECTIVE:The aim of the present study was to assess the value of dual-head gamma-camera (DHGC) imaging in the coincidence mode using 2-[18F]-fluoro-2-deoxy-D-glucose in differentiating recurrent tumor from posttreatment changes in previously treated head and neck cancer. METHODS:This was a single-center prospective s...

journal_title：Journal of computer assisted tomography

authors： Gandhi D,Falen S,McCartney W,Shockley W,Weissler M,Wrenn S,Shah G,Mukherji SK

更新日期：2005-07-01 00:00:00

abstract：:Intralobar bronchopulmonary sequestration typically receives systemic arterial supply from the descending thoracic or upper abdominal aorta. Isolated reports have documented supply from branch vessels of the abdominal aorta, including the celiac axis and inferior phrenic artery. We report a case of the anomalous arter...

journal_title：Journal of computer assisted tomography

authors： Pedersen ML,LeQuire MH,Spies JB,Ladd WA

更新日期：1988-09-01 00:00:00

abstract：:Despite increasing performance of pituitary imaging, adrenocorticotropic hormone (ACTH)-secreting pituitary adenomas are often difficult to identify because of their small size and variable location. We present a case of ACTH-dependent Cushing syndrome in which the demonstration of the cavernous sinus localization of ...

journal_title：Journal of computer assisted tomography

authors： Hamon M,Coffin C,Courthéoux P,Théron J,Reznik Y

更新日期：2003-05-01 00:00:00

abstract：OBJECTIVE:We describe and evaluate a preoperative MRI localization procedure for suspected breast lesions. MATERIALS AND METHODS:Fourteen consecutive patients underwent MR localization of suspected breast lesions discovered with contrast-enhanced MRI but not detected by conventional mammography or ultrasound. In each ...

journal_title：Journal of computer assisted tomography

authors： Fischer U,Vosshenrich R,Bruhn H,Keating D,Raab BW,Oestmann JW

更新日期：1995-01-01 00:00:00

abstract：OBJECTIVE:This study aimed to observe the value of computed tomography (CT) spectral imaging parameters in the diagnosis of solitary pulmonary nodules, during the contrast-enhanced early phase and late phase. MATERIALS AND METHODS:This study was approved by the institutional review board and written informed consent w...

journal_title：Journal of computer assisted tomography

authors： Lin JZ,Zhang L,Zhang CY,Yang L,Lou HN,Wang ZG

更新日期：2016-11-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to explore the usefulness of combined virtual monochromatic imaging and metal artifact reduction software (MARS) for the evaluation of musculoskeletal periprosthetic tissue. METHODS:Measurements were performed in periprosthetic and remote regions in 80 patients using a high-definiti...

journal_title：Journal of computer assisted tomography

authors： Reynoso E,Capunay C,Rasumoff A,Vallejos J,Carpio J,Lago K,Carrascosa P

更新日期：2016-07-01 00:00:00

abstract：PURPOSE:Our goal was to evaluate the visibility and incidence of traumatic abnormalities of the sinus tarsi in patients with acute ankle sprain injuries and compare these findings with the extent of lateral ankle ligament injuries on MRI. METHOD:Sixty athletically active patients (aged 18-45 years) with recent inversi...

journal_title：Journal of computer assisted tomography

authors： Breitenseher MJ,Haller J,Kukla C,Gaebler C,Kaider A,Fleischmann D,Helbich T,Trattnig S

更新日期：1997-03-01 00:00:00

abstract：:Sternal hyperostosis is characterized by prominent new bone formation and fibrosis with less pronounced areas of granulation tissue and round cell infiltration. In previously reported cases the process involved not only the sternum but adjacent bony areas as well. Depending upon the extent of disease, acquiring biopsy...

journal_title：Journal of computer assisted tomography

authors： Bechtold RE,Karstaedt N,Wolfman NT

更新日期：1990-01-01 00:00:00

abstract：PURPOSE:This study attempts to establish a quantitative link between a patient's body mass index (BMI), the delivered radiation dose, and the image noise. METHODS:The CARE Dose4D computed tomography (CT) acquisitions from 206 patients undergoing "eyes-to-thighs" contrast-enhanced positron emission tomography/CT studie...

journal_title：Journal of computer assisted tomography

authors： Daignault CP,Zhang J,Guo H,Roy DW,Froelich JF

更新日期：2013-07-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to assess the feasibility of performing diagnostic-quality contrast-enhanced excretory magnetic resonance urography (eMRU) at 3T, examining both image quality and diagnostic accuracy for a range of urinary tract abnormalities. METHODS:The diuretic-enhanced 3T eMRUs of 37 patie...

journal_title：Journal of computer assisted tomography

authors： Childs DD,Leyendecker JR,Gianini J,Hall C

更新日期：2013-01-01 00:00:00

abstract：:We present a case of a solitary cardiac metastasis from a malignant fibrous histiocytoma of the scalp. Magnetic resonance imaging improved the preoperative assessment and provided accurate information regarding the extent of the metastatic processes. ...

journal_title：Journal of computer assisted tomography

authors： Lee R,Fisher MR

更新日期：1989-01-01 00:00:00

abstract：OBJECTIVES:To characterize diffusion tensor imaging (DTI) tensor eigenvalues (λ1, λ2, λ3), fractional anisotropy, mean diffusivity, and radial diffusivity in healthy lumbar musculature. METHODS:Seventeen healthy subjects (10 men, 7 women; mean age, 28 ± 7 years) were scanned using a 3.0-T magnetic resonance imaging. A...

journal_title：Journal of computer assisted tomography

authors： Jones GE,Kumbhare DA,Harish S,Noseworthy MD

更新日期：2013-01-01 00:00:00