CT detection of aortocaval fistula.

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:To assess the degree of extra scanning beyond the prescribed anatomic boundaries for thoracic and body computed tomographic (CT) scans and to identify associated factors. METHODS:For 442 consecutive chest, abdomen, and/or pelvis CT examinations, the length of extra scanning beyond the prescribed anatomic bou...

journal_title：Journal of computer assisted tomography

authors： Liao EA,Quint LE,Goodsitt MM,Francis IR,Khalatbari S,Myles JD

更新日期：2011-01-01 00:00:00

abstract：:A recent case of absence of a cervical pedicle in a traumatized patient is presented. An incorrect radiological interpretation of the patient's plain films resulted in inappropriate management. Further radiological investigation, including computed tomography, revealed the underlying abnormality, and prevented subsequ...

journal_title：Journal of computer assisted tomography

authors： Cox HE,Bennett WF

更新日期：1984-06-01 00:00:00

abstract：:Disability from knee dysfunction has important implications on a patient's performance of simple day-to-day tasks, work-related duties, and leisure activities, including sports. Diagnostic imaging is of fundamental importance in the clinical evaluation of the patient with knee pain. The use of magnetic resonance imagi...

journal_title：Journal of computer assisted tomography

authors： Theodorou SJ,Theodorou DJ,Resnick D

更新日期：2005-01-01 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：: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：:We reviewed our clinical experience of the past 1 1/2 years using computed tomography (CT) in cases of suspected renal vein thrombosis; we detected three cases and correctly excluded renal vein thrombosis in an additional three patients. Because of our limited clinical experience, we surgically created left renal vein...

journal_title：Journal of computer assisted tomography

authors： Glazer GM,Francis IR,Gross BH,Amendola MA

更新日期：1984-04-01 00:00:00

abstract：:Computed tomography (CT) has been performed in 21 patients with primary hyperparathyroidism (HPT) in an attempt to localize preoperatively the parathyroid tumors. Eighteen of these patients also had ultrasound examinations. The CT examinations included the neck and mediastinum and were performed before and after contr...

journal_title：Journal of computer assisted tomography

authors： Sommer B,Welter HF,Spelsberg F,Scherer U,Lissner J

更新日期：1982-06-01 00:00:00

abstract：:Three patients are presented in whom computed tomography incidentally demonstrated low density masses posterior to, but separate from, the right kidney. In two, these were proven to represent unilocular cysts, and the third is presumed cystic. Possible etiologies are discussed. ...

journal_title：Journal of computer assisted tomography

authors： Buck DR,Dunnick NR,Doppman JL

更新日期：1979-12-01 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：:Neurofibromatosis or von Recklinghausen disease usually is a readily diagnosed entity, characterized by typical cutaneous lesions and a strong family history. In a variant of the usual disease, peripheral neurofibromatosis, these stigmata may be absent and accurate diagnosis may be elusive. We present a patient withou...

journal_title：Journal of computer assisted tomography

authors： Francis IR,Glazer GM

更新日期：1983-04-01 00:00:00

abstract：PURPOSE:The aim of our study was to evaluate the effectiveness of additional coronal images using low-milliamperage multidetector-row computed tomography (CT) in the diagnosis of bronchiectasis. METHODS:Helical volumetric CT scans (120 kVp, 70 mA, 2.5-mm collimation, table speed of 15 mm/s, table rotation time of 1 se...

journal_title：Journal of computer assisted tomography

authors： Sung YM,Lee KS,Yi CA,Yoon YC,Kim TS,Kim S

更新日期：2003-07-01 00:00:00

abstract：:The objective of this study was to measure the interobserver and interscan variation of coronary artery calcium scores using multidetector-row computed tomography (MDCT). Seventy-five patients underwent 2 sequential MDCT scans for coronary artery calcification. Each patient's score was separately measured by 3-blinded...

journal_title：Journal of computer assisted tomography

authors： Lawler LP,Horton KM,Scatarige JC,Phelps J,Thompson RE,Choi L,Fishman EK

更新日期：2004-01-01 00:00:00

abstract：PURPOSE:A new nonrigid registration method, designed to reduce the effect of movement artifact in subtraction images from breast MR, is compared with existing rigid and affine registration methods. METHOD:Nonrigid registration was compared with rigid and affine registration methods and unregistered images using 54 gad...

journal_title：Journal of computer assisted tomography

authors： Denton ER,Sonoda LI,Rueckert D,Rankin SC,Hayes C,Leach MO,Hill DL,Hawkes DJ

更新日期：1999-09-01 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：:Pneumatosis cystoides coli (PCC) is an uncommon condition in which multiple gas-filled cysts in the walls of the colon. Patients with PCC initially complain of various symptoms including abdominal discomfort, constipation, diarrhea, hematochezia, vomiting, and fever. We recently diagnosed PCC by computed tomography (C...

journal_title：Journal of computer assisted tomography

authors： Kim YN,Lee SJ,Kim MJ,Kim YH,Jang DK

更新日期：2008-01-01 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：:Perinatal insults, including anoxia, may lead to a form of cerebral necrosis designated multicystic encephalomalacia. This common condition is characterized by (a) moderate atrophic ventricular dilatation, (b) intact ventricular walls with thickened subependymal glial layer, (c) multiple cysts of irregular size and sh...

journal_title：Journal of computer assisted tomography

authors： Naidich TP,Chakera TM

更新日期：1984-08-01 00:00:00

abstract：:A case of a 26-year-old woman with decreasing vision in her right eye, diplopia, headache, and galactorrhea is presented. Both CT and MR studies showed a large sphenoid fibroosseous lesion that had a ground glass appearance on CT and low-to-intermediate proton density and low T2-weighted and low T1-weighted signal int...

journal_title：Journal of computer assisted tomography

authors： Sterling KM,Stollman A,Sacher M,Som PM

更新日期：1993-05-01 00:00:00

abstract：:This is the fourth of a series of 4 white papers that represent expert consensus documents developed by the Society of Computed Body Tomography and Magnetic Resonance through its task force on dual-energy computed tomography. This article, part 4, discusses DECT for abdominal and pelvic applications and, at the end of...

journal_title：Journal of computer assisted tomography

authors： De Cecco CN,Boll DT,Bolus DN,Foley WD,Kaza RK,Morgan DE,Rofsky NM,Sahani DV,Schoepf UJ,Shuman WP,Siegel MJ,Vrtiska TJ,Yeh BM,Berland LL

更新日期：2017-01-01 00:00:00

abstract：:Although tuberculosis is an uncommon cause of spinal arachnoiditis, it needs to be differentiated from other causes of arachnoiditis because it is a treatable disease. Myelography, which is the imaging modality of choice for the chronic adhesive stage of tuberculous arachnoiditis, usually reveals irregularity of the t...

journal_title：Journal of computer assisted tomography

authors： Kumar A,Montanera W,Willinsky R,TerBrugge KG,Aggarwal S

更新日期：1993-01-01 00:00:00

abstract：:Intracranial opportunistic infections have been widely reported in patients with acquired immune deficiency syndrome (AIDS). We report an unusual presentation of Toxoplasma gondii infection in a patient with AIDS. ...

journal_title：Journal of computer assisted tomography

authors： Cohen W,Koslow M

更新日期：1985-03-01 00:00:00

abstract：:The identification of fat within a focal or diffuse mediastinal lesion significantly narrows the differential diagnosis. In many cases, a specific diagnosis can be suggested on the basis of CT findings. In this article, we illustrate and review the characteristic CT features of common and uncommon fat attenuation lesi...

journal_title：Journal of computer assisted tomography

authors： Boiselle PM,Rosado-de-Christenson ML

更新日期：2001-11-01 00:00:00

abstract：PURPOSE:Our goal was to verify the correlation between the arterioportal shunt caused by liver biopsy injury and wedge-shaped early transient subsegmental parenchymal enhancement (TSPE) of the liver during helical dynamic CT. METHOD:Twenty-one consecutive patients with suspected hepatic tumor underwent percutaneous ne...

journal_title：Journal of computer assisted tomography

authors： Lee SJ,Lim JH,Lee WJ,Lim HK,Choo SW,Choo IW

更新日期：1997-05-01 00:00:00

abstract：PURPOSE:The aim of this study was to evaluate the exclusive performance of quality-assured high-resolution breast magnetic resonance imaging (MRI) for early detection of breast cancer in a population of asymptomatic women. MATERIALS AND METHODS:A total of 1189 MRI examinations performed in 789 asymptomatic women (mean...

journal_title：Journal of computer assisted tomography

authors： Fischer U,Luftner-Nagel S,Baum F,Marten-Engelke K,Wienbeck S

更新日期：2018-01-01 00:00:00

abstract：:We describe a new multistep procedure for CT fluoroscopy-guided core biopsy, which allows confirmation of the biopsy-sampling trough and the final needle tip position prior to sampling. Twelve lesions measuring < or =2 cm or in close proximity to vital structures were biopsied using commercially available biopsy syste...

journal_title：Journal of computer assisted tomography

authors： Goldberg SN,Keogan MT,Raptopoulos V

更新日期：2000-03-01 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：OBJECTIVE:The aim of this study was to investigate the utility of a balloon rectal channel catheter (BRCC) in complex anal fistula magnetic resonance imaging (MRI). METHODS:A prospective study was done on 54 patients with clinical diagnosis of complex anal fistula. Eighteen patients had preoperative MRI before and aft...

journal_title：Journal of computer assisted tomography

authors： Zhan S,Yang S,Lin J,Zhu Q,Lu F,Tan W,Cheng R,Gong Z,Yang W

更新日期：2016-07-01 00:00:00

abstract：:Magnetic susceptibility variations due to the presence of iron in neural tissue can result in a shift of local resonance frequency, decreased T2 resulting from water diffusion through local field gradients, and line broadening due to field inhomogeneity within a voxel. In this study, modified spin echo phase contrast ...

journal_title：Journal of computer assisted tomography

authors： Wismer GL,Buxton RB,Rosen BR,Fisel CR,Oot RF,Brady TJ,Davis KR

更新日期：1988-03-01 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