Motion Artifact Reduction From High-Pitch Dual-Source Computed Tomography Pulmonary Angiography.

abstract：OBJECTIVE:To compare examination volume and diagnostic yield of computed tomography (CT) pulmonary angiography (CTPA) and ventilation-perfusion (V/Q) scintigraphy for detection of suspected pulmonary embolism (PE) in emergency department patients. METHODS:Every CTPA and V/Q scan result for emergency department patient...

journal_title：Journal of computer assisted tomography

authors： Donohoo JH,Mayo-Smith WW,Pezzullo JA,Egglin TK

更新日期：2008-05-01 00:00:00

abstract：OBJECTIVE:We compared MRI with two-dimensional echocardiography (2dE) and Doppler echocardiography to determine the diagnostic role of MRI in hypertrophic cardiomyopathy (HCM). MATERIALS AND METHODS:Twenty-three patients with 2dE diagnosis of HCM were examined with MRI; 12 of 23 patients were also studied by color (cD...

journal_title：Journal of computer assisted tomography

authors： Sardanelli F,Molinari G,Petillo A,Ottonello C,Parodi RC,Masperone MA,Saitta S,Basso M,Caponnetto S

更新日期：1993-11-01 00:00:00

abstract：PURPOSE:The purpose of this work was to conduct an MR cholangiography study of hepatobiliary abnormalities in autosomal dominant polycystic kidney disease (ADPKD) and to correlate these abnormalities with the risk of infection. METHOD:Cystic and intrahepatic bile duct (IHBD) abnormalities identified by MR cholangiogra...

journal_title：Journal of computer assisted tomography

authors： Dranssart M,Cognet F,Mousson C,Cercueil JP,Rifle G,Krause D

更新日期：2002-03-01 00:00:00

abstract：OBJECTIVE:This study aimed to determine optimal strength of sinogram-affirmed iterative reconstruction (SAFIRE) and to evaluate image quality (IQ) of low-dose chest computed tomography (LDCT) using SAFIRE compared with iterative reconstruction in image space (IRIS) and filtered back projection (FBP). METHODS:Thirty pa...

journal_title：Journal of computer assisted tomography

authors： Hwang HJ,Seo JB,Lee HJ,Lee SM,Kim EY,Oh SY,Kim JE

更新日期：2013-07-01 00:00:00

abstract：:Diffuse low attenuation lesions on CT scans are caused by various pathologic conditions, especially differences of the intratumoral matrix. Low attenuation on CT scans was more defined than fat density and less than muscle density, the so-called near water density. We present representative cases of low attenuation le...

journal_title：Journal of computer assisted tomography

authors： Miyake H,Hori Y,Dono S,Mori H

更新日期：2000-09-01 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：PURPOSE:The purpose of this study was to compare the preoperative detectability of hepatocellular carcinomas (HCCs) using combined T2-weighted and dynamic gadolinium-enhanced MRI and combined CT during arterial portography (CTAP) and CT hepatic arteriography (CTHA). METHOD:Thirty-three patients with 43 HCCs underwent ...

journal_title：Journal of computer assisted tomography

authors： Choi D,Kim SH,Lim JH,Cho JM,Lee WJ,Lee SJ,Lim HK

更新日期：2001-09-01 00:00:00

abstract：:A lipoma eroding the scapula is diagnosed by computed tomography. ...

journal_title：Journal of computer assisted tomography

authors： Lloyd TV,Paul DJ

更新日期：1979-10-01 00:00:00

abstract：:The Boerhaave syndrome is classically considered a panmural perforation of the distal esophagus secondary to forced vomiting or retching. A variant of the syndrome is described in which only the outer longitudinal muscle layer of the esophagus was torn, and in this case most of the usual radiological findings were abs...

journal_title：Journal of computer assisted tomography

authors： Pezzulli FA,Aronson D,Goldberg N

更新日期：1989-01-01 00:00:00

abstract：:The computed tomographic findings in seven boys and two girls with infarction of the internal capsule are reported. Ages at the time of examination ranged from 8 months to 14 years. The etiology was head injury (concussion) in six and unknown in three. Cerebral angiography carried out in four cases showed narrowing of...

journal_title：Journal of computer assisted tomography

authors： Okuno T,Takao T,Ito M,Konishi Y,Mikawa H,Nakano Y

更新日期：1980-12-01 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：:Chondroblastoma is a rare benign primary bone tumor with generally characteristic plain radiographic features. In some cases, however, the benign nature and the extent of the lesion may not be appreciated using conventional radiography. We report the CT findings of chondroblastoma in three patients. In one patient CT ...

journal_title：Journal of computer assisted tomography

authors： Quint LE,Gross BH,Glazer GM,Braunstein EM,White SJ

更新日期：1984-10-01 00:00:00

abstract：:The inhalation of small quantities of carbon-11 labeled carbon monoxide results in a useful red cell label to identify vascular structures in the body and quantitate red cell concentration in tissues. Transverse section images are obtained using PC-II, the Massachusetts General Hospital (MGH) Positron Camera. Attenuat...

journal_title：Journal of computer assisted tomography

authors： Brownell GL,Cochavi S

更新日期：1978-11-01 00:00:00

abstract：OBJECTIVE:We retrospectively evaluated whether multi-detector row computed tomography (MDCT) could contribute to the early detection of contralateral breast cancer in women with a diagnosis of breast cancer and no suspicious lesions on a mammogram or an ultrasonogram of the contralateral breast. METHODS:A total of 518...

journal_title：Journal of computer assisted tomography

authors： Nakano S,Sakamoto H,Ohtsuka M,Mibu A,Karikomi M,Sakata H,Yamamoto M

更新日期：2011-01-01 00:00:00

abstract：OBJECTIVE:To present a novel magnetic resonance (MR) method of analysis of cerebrospinal fluid (CSF) flow dynamics. METHODS:Fifty-one subjects were explored with phase-contrast cine MR imaging. There were 36 volunteers, 9 patients with normal pressure hydrocephalus (NPH), and 6 patients with asymptomatic ventricular d...

journal_title：Journal of computer assisted tomography

authors： de Marco G,Idy-Peretti I,Didon-Poncelet A,Baledent O,Onen F,Feugeas MC

更新日期：2004-03-01 00:00:00

abstract：OBJECTIVE:The goal of this study was to quantify changes in uterine volume during and after chemotherapy for breast cancer. MATERIALS AND METHODS:Fifty-eight patients (mean age 42 years) with advanced breast cancer undergoing treatment with FLAC (5-fluorouracil, leucovorin, Adriamycin, and cyclophosphamide) were studi...

journal_title：Journal of computer assisted tomography

authors： Kolachana P,Cowan K,Denicoff A,Jones EC,Choyke PL

更新日期：1995-07-01 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：OBJECTIVES:The authors compared multislice CT angiography and selective angiography for the assessment of coronary artery disease. METHODS:In 28 patients, the presence and degree of coronary artery stenoses were determined in coronary segments prepared with beta-blocker for good image quality with multislice CT. RESU...

journal_title：Journal of computer assisted tomography

authors： Becker CR,Knez A,Leber A,Treede H,Ohnesorge B,Schoepf UJ,Reiser MF

更新日期：2002-09-01 00:00:00

abstract：:Fifteen of 605 examinations of patients aged 60 to 85 years showed symmetrical white matter hypodensity on computed tomography (CT). Six of these showed severe white matter hypodensity, low grade atrophy, and dilated ventricles. A diagnosis of encephalopathia subcorticalis chronica progressiva, or Binswanger disease, ...

journal_title：Journal of computer assisted tomography

authors： Zeumer H,Schonsky B,Sturm KW

更新日期：1980-02-01 00:00:00

abstract：:The aim of this review was to review the basic background, technique, and clinical applications of arterial spin labeling in brain tumors. Arterial spin labeling is used for differentiation of brain tumors from nonneoplastic lesions such as infarction and infection. It has a role in the grading of gliomas and in the d...

journal_title：Journal of computer assisted tomography

authors： Abdel Razek AAK,Talaat M,El-Serougy L,Gaballa G,Abdelsalam M

更新日期：2019-07-01 00:00:00

abstract：:In vivo attenuation values of 19 fluid collections in 17 patients were compared with in vitro values obtained on examination of the aspirated fluids within the calibration phantom of an EMI CT5005 body scanner. While the in vitro values showed a 5.2 Hounsfield unit (HU:1,000 scale). difference between cysts and absces...

journal_title：Journal of computer assisted tomography

authors： Bydder GM,Kreel L

更新日期：1980-04-01 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：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：OBJECTIVES:To compare and evaluate, using computer-aided volumetric measurements, the accuracy and reliability of nonpreformed mesh plates (NPMPs) versus 3-dimensionally preformed titanium mesh plates (PMPs) in posttraumatic orbital volume restoration. PATIENTS AND METHODS:Facial coronal computed tomographic scan slic...

journal_title：Journal of computer assisted tomography

authors： Scolozzi P,Momjian A,Heuberger J

更新日期：2010-01-01 00:00:00

abstract：:A case of leiomyosarcoma of the kidney is reported here with its CT and MRI manifestations correlated to the pathologic findings. The leiomyosarcoma appeared as a well-defined multinodular mass of varying density and signal intensity on CT and MRI, respectively. The low signal-intensity regions on T2-weighted MRI exhi...

journal_title：Journal of computer assisted tomography

authors： Ochiai K,Onitsuka H,Honda H,Kawamoto K,Uozumi J,Kumazawa J,Masuda K

更新日期：1993-07-01 00:00:00

abstract：:We intend to describe the imaging findings of sudden cardiac arrest occurring during computed tomographic (CT) examination and also of impending cardiogenic shock in 4 patients. Despite rare reports of acute cardiac arrest occurring during or shortly after CT scan, CT features are quite characteristic. Familiarity wit...

journal_title：Journal of computer assisted tomography

authors： Bagheri SM,Taheri MS,Pourghorban R,Shabani M

更新日期：2012-05-01 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：RATIONALE AND OBJECTIVES:We delivered the saline chaser via a spiral flow-generating tube or a conventional connecting tube and compared arterial enhancement at computed tomography angiography (CTA) of the lower extremities. MATERIALS AND METHODS:We randomly assigned 100 patients whose ankle bronchial pressure index o...

journal_title：Journal of computer assisted tomography

authors： Masuda T,Funama Y,Nakaura T,Imada N,Sato T,Yamashita Y,Awai K

更新日期：2015-11-01 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：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