Optimal contrast of computed tomography portal venography using dual-energy computed tomography.

abstract：:Although computed tomography (CT) delineation of normal white matter of the cerebral hemispheres has been well documented, there has been no description of white matter within the cerebellum. Through the use of phantom studies, CT number correlations between cerebellum and cerebral hemispheres, and anatomic correlatio...

journal_title：Journal of computer assisted tomography

authors： Maravilla KR,Pastel MS,Kirkpatrick JB

更新日期：1978-04-01 00:00:00

abstract：:Computed tomography scans of the larynx were obtained during quiet breathing and during phonation in 10 volunteers having no neck or larynx abnormalities. The subglottic and glottic laryngeal cavity and soft tissues showed symmetry from side to side. At the supraglottic level, the pliable aryepiglottic folds and pyrif...

journal_title：Journal of computer assisted tomography

authors： Gamsu G,Mark AS,Webb WR

更新日期：1981-06-01 00:00:00

abstract：:We present three cases of glioblastoma with CSF dissemination that contrast-enhanced fluid-attenuated inversion recovery MRI was sensitive enough to detect compared with contrast-enhanced T1-weighted MRI. An autopsy was performed on one patient, and its histologic findings proved the existence of CSF dissemination. ...

journal_title：Journal of computer assisted tomography

authors： Misaki K,Nakada M,Hayashi Y,Tachibana O,Yamashita J,Ueda F,Suzuki M

更新日期：2001-11-01 00:00:00

abstract：PURPOSE:Our purpose was to determine what represents normal findings on MR examinations of the lumbar spine in the immediately postoperative period following lumbar laminectomy with retained Surgicel. METHOD:MR examinations were performed immediately following lumbar laminectomy in 10 patients referred for symptoms of...

journal_title：Journal of computer assisted tomography

authors： Awwad EE,Smith KR Jr

更新日期：1999-11-01 00:00:00

abstract：PURPOSE:To identify computed tomographic (CT) findings that distinguish perirenal liposarcomas from exophytic angiomyolipomas. MATERIALS AND METHODS:We identified CT scans of 20 patients (13 women and 7 men; mean age, 63 years) with either perirenal liposarcoma (n = 11) proven at histopathology or large exophytic angi...

journal_title：Journal of computer assisted tomography

authors： Ellingson JJ,Coakley FV,Joe BN,Qayyum A,Westphalen AC,Yeh BM

更新日期：2008-07-01 00:00:00

abstract：:Gas formation as a result of transcatheter tumor embolization has recently been observed by conventional radiography. We report the computed tomography identification of similar benign gas formation following transcatheter embolization of a large adrenal carcinoma. Computed tomography should be the most sensitive meth...

journal_title：Journal of computer assisted tomography

authors： Long JA Jr,Dunnick NR,Doppman JL

更新日期：1979-12-01 00:00:00

abstract：:Fifteen prostates were obtained from patients autopsied at The Johns Hopkins Hospital and imaged fresh in vitro by high resolution magnetic resonance (MR) imaging with a surface coil. Following scanning, the specimens were fixed and sectioned in the same plane as the MR images. The prostate sections, corresponding to ...

journal_title：Journal of computer assisted tomography

authors： Hruban RH,Zerhouni EA,Dagher AP,Pessar ML,Hutchins GM

更新日期：1987-11-01 00:00:00

abstract：OBJECTIVE:The prevalence and features of the thyroid pyramidal lobe (TPL) on computed tomography (CT) have been reported, but no ultrasound (US) study has been found. The purposes of the current study were to assess the sonographic prevalence and features of TPLs and to compare the US and CT parameters of TPLs. METHOD...

journal_title：Journal of computer assisted tomography

authors： Kim KS,Kim DW,Sung JY

更新日期：2014-05-01 00:00:00

abstract：OBJECTIVE:Sequential computed tomography (CT) technique remains the most common protocol for CT evaluation of the head despite nearly universal adoption of continuous technique for all other body parts. This may be attributable to the belief by radiologists that this technique is superior to helical scanning uniquely f...

journal_title：Journal of computer assisted tomography

authors： Davis AJ,Ozsvath J,Vega E,Babb JS,Hagiwara M,George A

更新日期：2015-11-01 00:00:00

abstract：:A brief description of a nuclear magnetic resonance (NMR) imaging system and preliminary results from its clinical evaluation in the study of various central nervous system diseases are presented. Particular attention is paid to NMR capabilities for soft tissue discrimination, topographical demarcation, and specificit...

journal_title：Journal of computer assisted tomography

authors： Huk W,Heindel W,Deimling M,Stetter E

更新日期：1983-06-01 00:00:00

abstract：OBJECTIVE:To evaluate stent-induced artifacts by 64-row multidetector computed tomography (MDCT). METHODS:We studied 26 stented patients with MDCT before conventional coronary angiography (CCA). The CT values were measured. Stents were classified as occluded, with significant stenosis, with nonsignificant stenosis, or...

journal_title：Journal of computer assisted tomography

authors： Papini GD,Casolo F,Di Leo G,Briganti S,Fantoni C,Medda M,Inglese L,De Ambroggi L,Sardanelli F

更新日期：2010-11-01 00:00:00

abstract：:Maple syrup urine disease (MSUD) is an inherited metabolic disorder due to decreased decarboxylation of branched chain keto acids triggering an accumulation of leucine, isoleucine, and valine. We describe two infants with biochemically confirmed MSUD in whom computed tomography (CT) revealed cerebral edema. In one of ...

journal_title：Journal of computer assisted tomography

authors： Romero FJ,Ibarra B,Rovira M,Natal A,Herrera M,Segarra A

更新日期：1984-06-01 00:00:00

abstract：:Cooperative patients can often keep still during a long examination of the brain provided that they are given cues about their position in space. In a U-shaped head support, the only movements likely are rotation in the sagittal or transverse planes. These can be detected by a nasal orientation device (NOD), simply a ...

journal_title：Journal of computer assisted tomography

authors： Tofts PS,Kermode AG,MacManus DG,Robinson WH

更新日期：1990-01-01 00:00:00

abstract：:Abnormal hyperdensity consistent with skeletal muscle calcification was shown by CT in four of eight (50%) patients with rhabdomyolysis. This finding correlated significantly with antecedent hypocalcemia (p = 0.01) and renal insufficiency (p = 0.03). In patients with rhabdomyolysis, CT can show abnormal skeletal muscl...

journal_title：Journal of computer assisted tomography

authors： Russ PD,Dillingham M

更新日期：1991-05-01 00:00:00

abstract：:Ovarian fibromatosis is a rare benign nonneoplastic condition with ovarian enlargement in young women and characterized by a proliferation of collagen-producing spindle cells surrounding normal ovarian structures. We reported magnetic resonance findings of a case that the affected ovarian parenchyma with follicles was...

journal_title：Journal of computer assisted tomography

authors： Takeuchi M,Matsuzaki K,Sano N,Furumoto H,Nishitani H

更新日期：2008-09-01 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：OBJECTIVES:The aim of this study is to evaluate the effect of heart rate on exposure window, best phase, and image quality for stress computed tomography perfusion (CTP) in the CORE320 study. METHODS:The CTP data sets were analyzed to determine the best phase for perfusion analysis. A predefined exposure window coveri...

journal_title：Journal of computer assisted tomography

authors： Steveson C,Schuijf JD,Vavere AL,Mather RT,Caton T,Mehra V,Betoko A,Cox C,Lima JA,George RT

更新日期：2017-03-01 00:00:00

abstract：:Cranial computed tomography (CT) scans were analyzed in five patients with autopsy documented intracranial aspergillosis. All infections occurred in immunocompromised hosts. Our findings included subtle low attenuation abnormalities, minimal mass effect, and poor contrast enhancement without ring configuration, in the...

journal_title：Journal of computer assisted tomography

authors： Grossman RI,Davis KR,Taveras JM,Beal MF,O'Carroll CP

更新日期：1981-10-01 00:00:00

abstract：:Abdominal and thoracic computed tomography examinations were abnormal in 23 of 57 patients (40.5%) with seminomatous and nonseminomatous testicular tumors. Lymph node metastases measuring less than 30 Hounsfield units (HU) occurred in 10 of these 23 patients (43.5%), five with seminoma, four with mixed germ cell tumor...

journal_title：Journal of computer assisted tomography

authors： Scatarige JC,Fishman EK,Kuhajda FP,Taylor GA,Siegelman SS

更新日期：1983-08-01 00:00:00

abstract：:In view of the lack of ionizing radiation, ability to image in a variety of planes, and high contrast resolution, magnetic resonance (MR) imaging may have a role in obstetrical management. Three fetuses with severe cerebral abnormalities were studied by MR in utero. The findings were correlated with ultrasound examina...

journal_title：Journal of computer assisted tomography

authors： Thickman D,Mintz M,Mennuti M,Kressel HY

更新日期：1984-12-01 00:00:00

abstract：:A hepatic specific contrast agent was used in an attempt to detect a biopsy-proven hepatoma. This lesion had been missed by routine computed tomography and was poorly detected with the hepatic specific contrast agent EOE 13. It was also poorly detected by technetium-sulfur colloid hepatic scintigraphy. The true extent...

journal_title：Journal of computer assisted tomography

authors： Witrak BJ,Bernardino ME

更新日期：1983-10-01 00:00:00

abstract：:A whole-body single-photon emission computed tomography system has been evaluated in terms of its physical performance. It consists of a standard GE 400 T maxi camera rotating on a ring stand, coupled to an Informatek Simis 3 computer system. In its standard mode of operation, 64 or 128 successive views of 64 X 64 or ...

journal_title：Journal of computer assisted tomography

authors： Soussaline FP,Todd-Popkropek AE,Zurowski S,Huffer E,Raynaud CE,Kellershohn CL

更新日期：1981-08-01 00:00:00

abstract：:We conducted a prospective evaluation of the normal vermiform appendix in 203 patients. Conventional CT techniques were utilized with an 8 mm slice thickness and 10 mm slice interval. The normal appendix was definitely identified in 51% of the patients studied. Computed tomographic appearance of the normal appendix is...

journal_title：Journal of computer assisted tomography

authors： Grosskreutz S,Goff WB 2nd,Balsara Z,Burkhard TK

更新日期：1991-07-01 00:00:00

abstract：OBJECTIVE:We examined the relationship between the perfusion reserve as measured by acetazolamide (ACZ)-challenge N-isopropyl-I-123-p-iodoamphetamine (IMP)-single-photon emission computed tomography (SPECT) and the degree of leukoaraiosis (LA) as estimated using magnetic resonance imaging. METHODS:In 51 patients recei...

journal_title：Journal of computer assisted tomography

authors： Tomura N,Sasaki K,Kidani H,Nishii T,Yasuda K,Ishiyama K,Otani T,Sakuma I,Takahashi S,Watarai J,Yanagisawa T,Mizoi K

更新日期：2007-11-01 00:00:00

abstract：:We present the case of a young man with compression of both renal arteries by the crura of the diaphragm. Correct diagnosis of renal artery entrapment is difficult but crucial. The investigations rely on an high index of suspicion and include Doppler ultrasound and spiral computed tomography angiography, which permits...

journal_title：Journal of computer assisted tomography

authors： Déglise S,Corpataux JM,Haller C,Binaghi S,Meuwly JY,Qanadli SD

更新日期：2007-05-01 00:00:00

abstract：OBJECTIVE:We aim to determine the relationship between leukoaraiosis and carotid artery stenosis. METHODS:Carotid-cerebral multislice computed tomography angiographies of 194 patients (mean age, 63.5 years) were retrospectively evaluated. Presence and severity of leukoaraiosis and carotid artery stenosis were compared...

journal_title：Journal of computer assisted tomography

authors： Demirtaş H,Özkaynak C,Durmaz MS

更新日期：2013-05-01 00:00:00

abstract：OBJECTIVE:To study the potential application of magnetic resonance imaging (MRI) for classification of retained placental tissue (RPT) in the uterus postnatally. METHODS:Twenty-two patients with clinically or pathologically proven RPT were studied. RESULTS:The thickness ratio (D1/D2) of invaded (D1) to normal (D2) my...

journal_title：Journal of computer assisted tomography

authors： Zhang SH,Zhang JY,Zhang J,Chen WL,Zhou Q

更新日期：2019-01-01 00:00:00

abstract：:To evaluate the ability of gradient echo MR to define the vacuum phenomena, 14 cadaveric lumbar spines were imaged by spin echo and gradient echo MR, CT, and plain radiography following injection of varying amounts of air into the intervertebral disks. Gradient echo MR was more sensitive than spin echo MR or plain rad...

journal_title：Journal of computer assisted tomography

authors： Berns DH,Ross JS,Kormos D,Modic MT

更新日期：1991-03-01 00:00:00

abstract：:Repeat examinations in a de novo patient with Wilson disease revealed an expansion of decreased signal intensities in the basal ganglia on T2-weighted imaging after initiation of copper trapping therapy. Since marked clinical improvement was associated with continued urinary copper excretion, iron depositioning in exc...

journal_title：Journal of computer assisted tomography

authors： Engelbrecht V,Schlaug G,Hefter H,Kahn T,Mödder U

更新日期：1995-07-01 00:00:00

abstract：:Recently, the application of intravenous gadolinium-diethylenetriamine pentaacetic acid (Gd-DTPA) has been shown to improve the detection of intradural extramedullary spinal disease in adults. The ability of Gd-DTPA enhanced magnetic resonance (MR) to detect intradural extramedullary spinal metastases was studied in p...

journal_title：Journal of computer assisted tomography

authors： Blews DE,Wang H,Kumar AJ,Robb PA,Phillips PC,Bryan RN

更新日期：1990-09-01 00:00:00