Alveolar echinococcosis of the liver: MR findings.

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：:Fifteen patients with 21 subdural effusions were investigated both with transmission computer assisted tomography (CAT) and positron emission tomography (PET). The tracer in the emission studies was 68Ga-EDTA. Twelve lesions were visualized both with CAT and PET. Five lesions that were negative or doubtful on CAT were...

journal_title：Journal of computer assisted tomography

authors： Ericson K,Bergström M,Eriksson L

更新日期：1980-12-01 00:00:00

abstract：PURPOSE:Phase-contrast cine magnetic resonance imaging (PC-MRI) is a widely used technique for determination of possible communication of arachnoid cysts (ACs). Three-dimensional (3D) sampling perfection with application-optimized contrasts using different flip-angle evolutions (3D-SPACE) technique is a relatively new ...

journal_title：Journal of computer assisted tomography

authors： Algin O

更新日期：2018-09-01 00:00:00

abstract：:Thirty patients with suspected or known chronic aortic dissection were imaged with magnetic resonance (MR), CT, and angiography. Five of these patients had previously undergone surgical repair of the ascending aorta for a type A dissection. Magnetic resonance demonstrated an intimal flap and a double lumen in 25 cases...

journal_title：Journal of computer assisted tomography

authors： Pernes JM,Grenier P,Desbleds MT,de Brux JL

更新日期：1987-11-01 00:00:00

abstract：PURPOSE:Our goal was to validate linear and nonlinear intersubject image registration using an automated method (AIR 3.0) based on voxel intensity. METHOD:PET and MRI data from 22 normal subjects were registered to corresponding averaged PET or MRI brain atlases using several specific linear and nonlinear spatial tran...

journal_title：Journal of computer assisted tomography

authors： Woods RP,Grafton ST,Watson JD,Sicotte NL,Mazziotta JC

更新日期：1998-01-01 00:00:00

abstract：:The aim of the study was to explore the efficacy of iodine quantification with dual-energy computed tomography (DECT) in differentiating thymoma, thymic carcinoma, and thymic lymphoma. MATERIALS AND METHODS:Fifty-seven patients with pathologically confirmed low-risk thymoma (n = 16), high-risk thymoma (n = 15), thymi...

journal_title：Journal of computer assisted tomography

authors： Yan WQ,Xin YK,Jing Y,Li GF,Wang SM,Rong WC,Xiao G,Lei XB,Li B,Hu YC,Cui GB

更新日期：2018-11-01 00:00:00

abstract：:The magnetic resonance appearance of three lesions of focal nodular hyperplasia observed in two patients is reviewed. All three lesions demonstrated isointensity with the liver on the short repetition time (TR) and echo time (TE) spin echo images. One lesion also showed a central area of low signal intensity that path...

journal_title：Journal of computer assisted tomography

authors： Schiebler ML,Kressel HY,Saul SH,Yeager BA,Axel L,Gefter WB

更新日期：1987-07-01 00:00:00

abstract：:We propose an adaptive nonlocal means approach for image-domain material decomposition in low-dose dual-energy micro-computed tomography. The key idea is to create a distribution map for decomposition error and assign a smooth weight for a given pixel. This method is applied to the decomposed images of 3 basis materia...

journal_title：Journal of computer assisted tomography

authors： Yuan Y,Zhang Y,Yu H

更新日期：2018-11-01 00:00:00

abstract：OBJECTIVE:The dimensions of the optic nerves, chiasm, and tracts were determined in normal patients and in patients with clinical evidence of optic atrophy to establish whether there was a significant difference between the two groups. MATERIALS AND METHODS:The authors analyzed thin section coronal MRI of 110 patients...

journal_title：Journal of computer assisted tomography

authors： Parravano JG,Toledo A,Kucharczyk W

更新日期：1993-09-01 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：:Multiple authors have pointed out the difficulty of detecting spondylolysis with lumbar CT. A simple method to detect spondylolysis on lumbar CT is described. Identifying one intact cortical ring for each vertebra absolutely excludes the diagnosis obviating the time-consuming need to search each image looking for posi...

journal_title：Journal of computer assisted tomography

authors： Langston JW,Gavant ML

更新日期：1985-07-01 00:00:00

abstract：OBJECTIVE:Dysarthria and tongue swelling may be seen with hypoglossal nerve palsy, and on cross-sectional imaging studies, tongue denervation can be misinterpreted as a primary base-of-tongue mass. Understanding radiological patterns of tongue denervation is important to prevent misinterpretation. Close evaluation of t...

journal_title：Journal of computer assisted tomography

authors： Learned KO,Thaler ER,O'Malley BW Jr,Grady MS,Loevner LA

更新日期：2012-11-01 00:00:00

abstract：:We present a unique case of aggressive osteoblastoma arising from thyroid cartilage. A 52-year-old man presented with a 10 month history of neck discomfort but without frank pain. CT and MR examinations disclosed a well defined mass arising from the thyroid cartilage. This lesion had areas of coarse calcifications and...

journal_title：Journal of computer assisted tomography

authors： Agarwala R,Graham RJ,Panella JS

更新日期：1996-01-01 00:00:00

abstract：PURPOSE:The aim of this study was to investigate the role of dynamic contrast-enhanced magnetic resonance imaging (MRI) in evaluation of blood flow changes related to transarterial chemoembolization (TACE) and radiofrequency ablation (RFA) procedures in patients with hepatocellular carcinoma (HCC) lesions. METHODS:Fif...

journal_title：Journal of computer assisted tomography

authors： Ippolito D,Trattenero C,Talei Franzesi C,Casiraghi A,Lombardi S,Vacirca F,Corso R,Sironi S

更新日期：2016-09-01 00:00:00

abstract：:A case in which pus within a bladder diverticulum simulated a deep pelvic abscess is presented. This pitfall in CT diagnosis should be considered in patients with bladder outlet obstruction with symptoms of infection. ...

journal_title：Journal of computer assisted tomography

authors： Patel U,Furie DM,Lee WJ

更新日期：1991-05-01 00:00:00

abstract：:Xanthogranulomatosis is a multicentric or systemic proliferative disorder of histiocytes. Two cases of xanthogranulomas are reported, each involving the kidneys. One patient also had concomitant orbital and CNS involvement. Primary renal involvement without associated retroperitoneal masses is an uncommon manifestatio...

journal_title：Journal of computer assisted tomography

authors： Merine D,Fishman EK,Siegelman SS

更新日期：1987-09-01 00:00:00

abstract：PURPOSE:Our goal was to perform a detailed comparison of the relative performances of helical CT (pitches 1.0, 1.5, and 2.0) and conventional (overlapped and nonoverlapped) CT in detailed 3D and MPR musculoskeletal imaging. METHOD:A specially designed bone fragment phantom was imaged with multiple slice thicknesses us...

journal_title：Journal of computer assisted tomography

authors： Kasales CJ,Mauger DT,Sefczek RJ,Mahraj R,Meilstrup JW,Van Hook D,Patrone SV,Sefczek DM,Eggli KD,Wise SW,Westacott S,Hopper KD

更新日期：1997-01-01 00:00:00

abstract：:A new examination protocol for patients with suspected meniscal or hyaline cartilage disorders is presented. Knees were imaged with a fast gradient echo imaging sequence with subsequent three-dimensional transformation. Data were transferred to an image processing system that allows reconstruction in any plane desired...

journal_title：Journal of computer assisted tomography

authors： Adam G,Bohndorf K,Drobnitzky M,Guenther RW

更新日期：1989-11-01 00:00:00

abstract：:A simple method for identifying the scanning level in computed tomography (CT) of the spine is described. The method involves exposing a lead lattice grid on a conventional X-ray film and taking a conventional spine film with aluminum markers on the patient's back. The film showing the grid and the markers on the pati...

journal_title：Journal of computer assisted tomography

authors： Dossetor RS,Veiga-Pires JA,Kaiser M

更新日期：1979-04-01 00:00:00

abstract：:Previous reports of magnetic resonance imaging of the prostate have described a homogeneous appearance to the normal prostate gland. The T2-weighted images of the normal prostate obtained at higher field strength (1.5 T) reveal an inhomogeneous appearance of the normal gland, with apparent differentiation of normal pr...

journal_title：Journal of computer assisted tomography

authors： Sommer FG,McNeal JE,Carrol CL

更新日期：1986-11-01 00:00:00

abstract：:Forty-four consecutive patients with laryngeal carcinomas presenting at different stages of the disease were investigated by magnetic resonance (MR) imaging. Twelve patients (six with primary lesions and six with recurrent tumors) underwent laryngectomy, and the macro- and microscopic appearance of the slice specimens...

journal_title：Journal of computer assisted tomography

authors： Castelijns JA,Kaiser MC,Valk J,Gerritsen GJ,van Hattum AH,Snow GB

更新日期：1987-01-01 00:00:00

abstract：:A case of an unusually large cystic renal cell carcinoma demonstrated on plain film, CT, and magnetic resonance (MR) is presented. Though the origin of huge abdominal tumors can be difficult to determine, the CT and MR findings were able to correctly diagnose the mass as a malignant cystic kidney tumor. ...

journal_title：Journal of computer assisted tomography

authors： Rofsky NM,Bosniak MA,Weinreb JC,Coppa GF

更新日期：1989-11-01 00:00:00

abstract：OBJECTIVE:To investigate the diagnostic efficacy of sequentially acquired gadobenete dimeglumine-enhanced 3-dimensional dynamic magnetic resonance imaging (MRI) and Resovist-enhanced MRI for detecting hepatocellular carcinoma (HCC) by comparing with combined computed tomography (CT) hepatic arteriography (CTHA) and CT ...

journal_title：Journal of computer assisted tomography

authors： Kim YK,Kwak HS,Han YM,Kim CS

更新日期：2007-09-01 00:00:00

abstract：:Seven patients with supratentorial infarction were studied by means of serial nuclear magnetic resonance imaging using saturation recovery (SR) and proton density (PD) sequences. The earliest changes were visible in the more sensitive T1 dependent images (SR) and may reflect the cytotoxic component of ischemic brain e...

journal_title：Journal of computer assisted tomography

authors： Sipponen JT,Kaste M,Ketonen L,Sepponen RE,Katevuo K,Sivula A

更新日期：1983-08-01 00:00:00

abstract：OBJECTIVE:This study aimed to determine if carotid arterial tortuosity represents a marker of disease severity in Loeys-Dietz syndrome (LDS). METHODS:Fifty-four 54 LDS patients (mean age, 17.0 years) who underwent computed tomogram angiography from January 2004 to December 2013 were retrospectively identified. Carotid...

journal_title：Journal of computer assisted tomography

authors： Chu LC,Haroun RR,Beaulieu RJ,Black JH 3rd,Dietz HC,Fishman EK

更新日期：2018-09-01 00:00:00

abstract：OBJECTIVE:The aim of the study was to investigate the feasibility of low-tube-voltage computed tomography (CT) in combination with 3-dimensional adaptive iterative dose reduction (AIDR-3D) algorithm in lower extremity CT angiography. METHODS:The CT data of the 120-kV group (n = 30) were reconstructed with filtered bac...

journal_title：Journal of computer assisted tomography

authors： Pan YN,Li AJ,Chen ZQ,Ren DW,Zhang J,Jiang MQ,Huang QL

更新日期：2016-03-01 00:00:00

abstract：PURPOSE:The purpose of this work was to evaluate the accuracy of CT angiography (CTA) for the detection of large vessel intracranial thrombus in clinically suspected hyperacute (<6 h) stroke patients. METHOD:Forty-four consecutive intraarterial thrombolysis candidates underwent noncontrast CT followed immediately by C...

journal_title：Journal of computer assisted tomography

authors： Lev MH,Farkas J,Rodriguez VR,Schwamm LH,Hunter GJ,Putman CM,Rordorf GA,Buonanno FS,Budzik R,Koroshetz WJ,Gonzalez RG

更新日期：2001-07-01 00:00:00

abstract：OBJECTIVE:The aim of the study was to investigate the accuracy of dual-energy computed tomography (DECT) compared with magnetic resonance (MR) imaging for the detection of edema of the mandible. MATERIALS AND METHODS:Fifteen adult Göttingen mini pigs received irradiation to the mandible with an equivalent dose of 0, 2...

journal_title：Journal of computer assisted tomography

authors： Poort LJ,Stadler AAR,Ludlage JHB,Hoebers FJP,Kessler PAWH,Postma AA

更新日期：2017-07-01 00:00:00

abstract：PURPOSE:Our goal was to characterize the MR features of pathologically documented gliosarcoma and to determine if these features help differentiate gliosarcoma from other intracranial neoplasms. METHOD:MR studies of six patients with pathologically documented gliosarcoma were retrospectively analyzed. RESULTS:The tum...

journal_title：Journal of computer assisted tomography

authors： Dwyer KW,Naul LG,Hise JH

更新日期：1996-09-01 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