Quantitative Dual-Energy Computed Tomography Predicts Regional Perfusion Heterogeneity in a Model of Acute Lung Injury.

abstract：OBJECTIVE:The purpose of this study is to evaluate whether laterality of the superficial cerebral veins can be seen on susceptibility-weighted imaging (SWI) in patients with no intracranial lesions that affect venous visualization. METHODS:We retrospectively evaluated 386 patients who underwent brain magnetic resonanc...

journal_title：Journal of computer assisted tomography

authors： Matsushima S,Shimizu T,Gomi T,Fukuda K

更新日期：2018-01-01 00:00:00

abstract：PURPOSE:The goal of our study was to examine the prevalence of multiple hypodense splenic nodules and their associated diagnoses and to correlate CT appearance with clinical presentation and diagnosis. METHOD:Records of all patients undergoing contrast-enhanced CT from July 1994 through September 1997 were reviewed. C...

journal_title：Journal of computer assisted tomography

authors： Warshauer DM,Molina PL,Worawattanakul S

更新日期：1998-09-01 00:00:00

abstract：:Based on a pool of 24 selected cases of nontraumatic pathology of the hand and wrist in patients under the age of 18 years, collected from three pediatric hospitals, the authors have illustrated a number of congenital, inflammatory, and infectious conditions as well as tumors of bones and soft tissues, utilizing MRI w...

journal_title：Journal of computer assisted tomography

authors： Azouz EM,Babyn PS,Mascia AT,Tuuha SE,Décarie JC

更新日期：1998-03-01 00:00:00

abstract：OBJECTIVE:This study examined the effect of coronary artery calcification score by lifestyle and correlation with coronary artery stenosis in persons who underwent coronary artery computed tomography (CT) angiography among health examinees for heart diseases in Korea. METHODS AND MATERIALS:The study included 506 subje...

journal_title：Journal of computer assisted tomography

authors： Lee SH,Cho JH,Kim HE,Kim SC

更新日期：2017-03-01 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：:We studied four patients with adrenocorticotropic hormone (ACTH)-independent hypercortisolism due to bilateral massive enlargement of the adrenal glands. The combined weight of the adrenal glands ranged from 69 to 149 g and the adrenal cortex was replaced in three of four patients by multiple nodules ranging from micr...

journal_title：Journal of computer assisted tomography

authors： Doppman JL,Nieman LK,Travis WD,Miller DL,Cutler GB Jr,Chrousos GP,Norton JA

更新日期：1991-09-01 00:00:00

abstract：:Three surgically proven cases of lumbar extradural juxtaarticular cysts were examined by magnetic resonance (MR) imaging. The highly variable MR signal patterns are presented. ...

journal_title：Journal of computer assisted tomography

authors： Awwad EE,Martin DS,Smith KR Jr,Bucholz RD

更新日期：1990-05-01 00:00:00

abstract：:In a prospective clinical study, 26 patients (22 with malignant lymphoma and 4 with myelofibrosis) and 9 healthy volunteers were examined by conventional magnetic resonance and proton chemical shift imaging (CSI; modified Dixon method). On the basis of the CSI data, a quantitative evaluation of the relative fat and wa...

journal_title：Journal of computer assisted tomography

authors： Gückel F,Brix G,Semmler W,Zuna I,Knauf W,Ho AD,van Kaick G

更新日期：1990-07-01 00:00:00

abstract：:The CT findings in a case of calcified gastric carcinoma of the mucin-producing type are described. These findings include localized thickening of the gastric wall and multiple tiny calcific nodules within it. ...

journal_title：Journal of computer assisted tomography

authors： Nishimura K,Togashi K,Tohdo G,Dodo Y,Tanada S,Nakano Y,Torizuka K

更新日期：1984-10-01 00:00:00

abstract：OBJECTIVE:To evaluate enhancement effects of breast lesions with dynamic computed tomography (CT) and to determine characteristics to aid in differential diagnosis of benign and malignant lesions. METHODS:One hundred seventy-six women underwent preoperative dynamic CT, in which they were scanned with rapid injection o...

journal_title：Journal of computer assisted tomography

authors： Miyake K,Hayakawa K,Nishino M,Nakamura Y,Morimoto T,Urata Y,Ueda H,Tanikake M,Kanao S,Shiozaki T,Yamamoto A

更新日期：2005-11-01 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：:The CT and magnetic resonance (MR) findings in 13 patients with advanced Zollinger-Ellison syndrome are described. In eight patients (62%) one or more primary tumors were found with both methods. All patients with proven liver metastases (n = 7) were identified by MR. Computed tomography was positive in six of these p...

journal_title：Journal of computer assisted tomography

authors： Tjon A Tham RT,Falke TH,Jansen JB,Lamers CB

更新日期：1989-09-01 00:00:00

abstract：:A splenic mass was found in an asymptomatic 76-year-old woman who had been treated with steroids for autoimmune hepatitis. The lesion was found to be hyperechoic on ultrasound examination, hypovascular on angiography, low attenuating on postcontrast computed tomography, isointense to splenic parenchyma on precontrast ...

journal_title：Journal of computer assisted tomography

authors： Abo D,Terae S,Fukasawa Y,Seki H,Hasegawa Y,Sakuhara Y,Shimizu T,Shirato H

更新日期：2008-11-01 00:00:00

abstract：:Magnetic resonance was performed in five patients with obstructive hydrocephalus due to surgically proven colloid cyst of the third ventricle. On T1-weighted images two lesions were homogeneously hyperintense and another homogeneously isointense with the surrounding brain parenchyma. On T2-weighted images these three ...

journal_title：Journal of computer assisted tomography

authors： Wilms G,Marchal G,Van Hecke P,Plets C,Lammens M,Goffin J,Baert AL

更新日期：1990-07-01 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：:Computed tomography has had an increasing role in the evaluation of patients after blunt trauma. Important findings in thoracic trauma include acute traumatic aortic injury, pneumothorax, hemothorax, pulmonary contusions and lacerations, mediastinal hematoma, and diaphragmatic rupture. The solid abdominal viscera may ...

journal_title：Journal of computer assisted tomography

authors： Mullinix AJ,Foley WD

更新日期：2004-07-01 00:00:00

abstract：OBJECTIVE:To investigate the hemodynamic mechanism of pseudoaneurysm in the anterior communicating artery (AcoA) area in magnetic resonance (MR) angiography. METHODS:For the clinical study, a total of 62 patients who undertook digital subtraction angiography (DSA) because of the rupture of an aneurysm originating from...

journal_title：Journal of computer assisted tomography

authors： Chung TS,Lee YJ,Kang WS,Kang SK,Rhim YC,Yoo BG,Park IK

更新日期：2004-05-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to investigate whether the criterion "maximum depth of intraluminal appendiceal fluid greater than 2.6 mm" ("DEPTH >2.6 mm"), with the use of 64-detector row computed tomography, is useful to diagnose appendicitis. METHODS:We retrospectively evaluated 0.68-mm-thick images of 2...

journal_title：Journal of computer assisted tomography

authors： Moteki T,Ohya N,Horikoshi H

更新日期：2011-11-01 00:00:00

abstract：:Three cases of hemorrhagic nerve sheath tumors of the scalp are presented with emphasis on CT findings. Each mass produced a mixed pattern of CT density due to the combination of tumor and hemorrhage within it. The CT findings were remarkably similar in the three patients and included a calvarial abnormality underlyin...

journal_title：Journal of computer assisted tomography

authors： Nanni D,Lotz PR

更新日期：1985-03-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to determine whether computed tomography (CT) angiography with machine learning (ML) can be used to predict the rapid growth of abdominal aortic aneurysm (AAA). MATERIALS AND METHODS:This retrospective study was approved by our institutional review board. Fifty consecutive patie...

journal_title：Journal of computer assisted tomography

authors： Hirata K,Nakaura T,Nakagawa M,Kidoh M,Oda S,Utsunomiya D,Yamashita Y

更新日期：2020-01-01 00:00:00

abstract：:The incidence of melanoma has risen dramatically over the past several decades. Oncologists rely on the ability of radiologists to identify subtle radiographic changes representing metastatic and recurrent melanoma in uncommon locations on multidetector computed tomography (MDCT) as the front-line imaging surveillance...

journal_title：Journal of computer assisted tomography

authors： Jones BC,Lipson EJ,Childers B,Fishman EK,Johnson PT

更新日期：2018-05-01 00:00:00

abstract：OBJECTIVE:This study was aimed to determine the utility of quantitative dynamic contrast-enhanced magnetic resonance imaging (MRI) in differentiating benign and malignant lesions in patients with known thyroid gland lesions scheduled for resection. METHODS:Patients scheduled for resection of a thyroid mass were prospe...

journal_title：Journal of computer assisted tomography

authors： Ben-David E,Sadeghi N,Rezaei MK,Muradyan N,Brown D,Joshi A,Taheri MR

更新日期：2015-11-01 00:00:00

abstract：OBJECTIVE:To know the CT changes that may be seen in the mediastinum after uncomplicated mediastinoscopy. MATERIALS AND METHODS:Noncontrast CT was performed on 10 patients on the 1st, 3rd, and 5th days after the procedure. RESULTS:We encountered linear and diffuse increased attenuation within the mediastinum as well ...

journal_title：Journal of computer assisted tomography

authors： Astigarraga E,Sáez F,Canteli B,Gozalo A,Lamikiz A

更新日期：1994-07-01 00:00:00

abstract：:We present a case of a child with acute bacterial leptomeningeal infection caused by Streptococcus pneumoniae. There was an extension of infection along multiple Virchow-Robin spaces into the brain parenchyma, resulting in multiple microabscesses. These abscesses showed restricted diffusion on the diffusion-weighted i...

journal_title：Journal of computer assisted tomography

authors： Gordon M,Parmar H,Ibrahim M

更新日期：2009-07-01 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：:Pelvic varices in women consist of tortuous and dilated parauterine and ovarian veins and have a characteristic appearance at CT and MRI. Imaging is critical in the evaluation of pelvic varices, both to prevent confusion with other conditions and because pelvic varices may be secondary to serious underlying pathology....

journal_title：Journal of computer assisted tomography

authors： Coakley FV,Varghese SL,Hricak H

更新日期：1999-05-01 00:00:00

abstract：PURPOSE:The graphical approach is widely used for the pixelwise determination of local metabolic rate of glucose from dynamic positron emission tomography (PET) data. In its conventional implementation, measured integrals over time frames are used to approximate instantaneous tracer concentrations at midframe times ("m...

journal_title：Journal of computer assisted tomography

authors： Buchert R,van den Hoff J,Mester J

更新日期：2003-07-01 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：:Magnetization transfer (MT) between protons of macromolecules and protons of water molecules is a recently introduced mechanism for tissue contrast in MR imaging. The MT effect is strong in tissues where there is an efficient cross relaxation between macromolecular protons and water protons and where this interaction ...

journal_title：Journal of computer assisted tomography

authors： Tanttu JI,Sepponen RE,Lipton MJ,Kuusela T

更新日期：1992-01-01 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