Abstract：
:The effect of cardiac gating (CG) on the diagnostic quality of magnetic resonance images of the hilum and mediastinum was evaluated by comparing gated with nongated scans in 20 patients. The advantages of CG varied depending on the regions and structures under study and the presence and extent of disease. In general, CG was more advantageous in normal subjects and patients with small or subtle lesions than in patients with advanced disease. In the posterior and superior portions of the thorax there was no clear-cut advantage of CG. Normal structures were usually seen slightly better on gated images, but lung and mediastinal masses were usually visualized equally well with or without CG. From the level of the pulmonary arteries to the diaphragm, gated images were superior for visualizing normal and abnormal structures in the hilum, mediastinum, and to a lesser extent, the lungs. Both hilar and mediastinal lymphadenopathy and mediastinal invasion at the level of the lung root were consistently better visualized with CG. Large masses were usually well demonstrated without CG, but the relationship of the mass to adjacent structures was better delineated with CG.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Westcott JL,Henschke CI,Berkmen Ydoi
10.1097/00004728-198511000-00013subject
Has Abstractpub_date
1985-11-01 00:00:00pages
1073-8issue
6eissn
0363-8715issn
1532-3145journal_volume
9pub_type
杂志文章abstract：:We report the MR features in two patients presenting with symptomatic thecal impingement by posterior epidural cysts linking a bilateral lumbar spondylolysis. Large fluid-filled channels bridging the ruptured partes interarticulares were present in spite of the absence of significant arthritic changes within the adjac...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199907000-00008
更新日期：1999-07-01 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
pub_type： 杂志文章
doi：10.1097/RCT.0000000000000497
更新日期：2017-03-01 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
pub_type： 杂志文章
doi：10.1097/00004728-198503000-00008
更新日期：1985-03-01 00:00:00
abstract：:A case of a huge intracranial frontoparietal osteochondroma in a 20-year-old man is reported. The presenting symptoms were headache, vomiting, and blurred vision. Apart from papilledema, no other abnormal neurological signs were present. A specific preoperative diagnosis could not be reached from the information provi...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198102000-00022
更新日期：1981-02-01 00:00:00
abstract：PURPOSE:To investigate the apparent diffusion coefficients (ADCs) of the normal uterine zonal structures (myometrium, endometrium, and junctional zone) during different phases of the menstrual cycle among premenopausal women with different age groups. MATERIALS AND METHODS:Magnetic resonance (MR) images of 67 healthy ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e3182418885
更新日期：2012-01-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Influenza A infection can precipitate encephalopathy, encephalitis, or Reye syndrome with the development of cerebral edema in children and is associated with an increased incidence of stroke in adults. The mechanism of these events is poorly understood. Posterior reversible encephalopathy syndro...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e3181993a43
更新日期：2009-11-01 00:00:00
abstract：:Cystic hygromas most often occur in the neck in children and are benign lesions not associated with cranial nerve palsies. We present two cases in which a facial nerve paralysis was one of the presenting symptoms. The computed tomographic (CT) scans localized the lesions, suggested a diagnosis, and obviated angiograph...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198402000-00021
更新日期：1984-02-01 00:00:00
abstract：:Aeration of the middle turbinate, termed "concha bullosa," is a common anatomical variant of intranasal anatomy. Of 320 patients evaluated for sinus disease with coronal CT, 34% had concha bullosa on at least one side. The overall incidence of inflammatory disease in the ostiomeatal complex in these symptomatic patien...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198809010-00012
更新日期：1988-09-01 00:00:00
abstract：:We review our preliminary experience with the use of three-dimensional (3D) time-of-flight (TOF) magnetic resonance (MR) angiography (MRA) in the assessment of intra- and extracranial aneurysms. Six patients were examined: Five had intracranial aneurysms and one had a cervical carotid pseudoaneurysm. A 3D rephased gra...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199011000-00002
更新日期：1990-11-01 00:00:00
abstract：PURPOSE:To evaluate the usefulness of CT in the differentiation of ruptured endometrial cysts and corpus luteal cysts. METHODS:Sixteen patients (mean age, 26 years) with a surgically proven ruptured endometrial cyst and 19 patients (mean age, 28 years) with a surgically proven corpus luteal cyst were included in this ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e31821f4bd2
更新日期：2011-07-01 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
pub_type： 杂志文章
doi：10.1097/RCT.0000000000000289
更新日期：2015-11-01 00:00:00
abstract：:Dural venous thrombosis can have a rapidly progressive fatal course if unrecognized; its clinical picture is often confusing. Numerous CT, magnetic resonance (MR), and angiographic findings have been described to help recognize this entity. We present a case of dilated transcerebral medullary veins as a sign of superi...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198711000-00028
更新日期：1987-11-01 00:00:00
abstract：PURPOSE:Our goal was to determine the number of malignancies detected by thoracic CT in patients with head and neck squamous cell carcinoma (SCCA) in three clinical settings. METHOD:We retrospectively examined 168 thorax CT scans in 93 patients with head and neck SCCA and determined the number of malignancies (second ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199705000-00014
更新日期：1997-05-01 00:00:00
abstract：PURPOSE:The purpose of this study was to correlate thin-slice high-resolution helical CT findings of arterial and venous involvement in pancreatic cancers with surgical and histopathologic results. METHOD:Forty-eight patients with pancreatic cancer underwent preoperative thin-slice high-resolution helical CT, followed...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-200105000-00002
更新日期：2001-05-01 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
pub_type： 杂志文章
doi：10.1097/00004728-200401000-00006
更新日期：2004-01-01 00:00:00
abstract：:The CT findings of multiple lipid-containing dermal cysts in a patient with steatocystoma multiplex are presented. The characteristic locations, shapes, and densities of the cysts in this rare skin disorder are discussed. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198603000-00043
更新日期：1986-03-01 00:00:00
abstract：:Pancreas transplantation has become more commonplace over the past several decades. Consequently, the radiological evaluation of patients with such transplants has also become more common. Radiologists must therefore be familiar with the normal imaging appearances of pancreas transplant grafts as well as a wide variet...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章,评审
doi：10.1097/RCT.0b013e3181966988
更新日期：2009-07-01 00:00:00
abstract：:We report eight patients studied by computed tomography (CT) and arteriography and one patient studied by CT only and compare the value of both methods in the preoperative localization of pheochromocytoma. Single adrenal tumors were found in six adults (four were right sided and two were left sided). A 15-year-old chi...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198012000-00021
更新日期：1980-12-01 00:00:00
abstract：PURPOSE:The purpose of this work was to define the characteristic MR features of colorectal mucinous carcinomas and to correlate the mucin pool with the signal intensity of this tumor. METHOD:MRI of 12 cases of pathologically proven colorectal carcinoma containing mucin was evaluated. We analyzed the signal intensity ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199903000-00021
更新日期：1999-03-01 00:00:00
abstract：:This article will familiarize the reader with useful tools and trouble-shooting tips for web-based conferencing. Radiology-based scenarios for web conferencing are also provided. ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0000000000001072
更新日期：2020-07-01 00:00:00
abstract：:Two patients with bone sarcomas were found to have pancreatic masses on routine follow-up CT. Although pancreatic metastasis most often occurs in a setting of widely disseminated disease, it may occur as an isolated finding, most often asymptomatic. It may also be responsible for clinical pancreatitis. Both of these p...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198509000-00008
更新日期：1985-09-01 00:00:00
abstract：:Two extradural arachnoid cysts of the thoracic spine were studied with magnetic resonance imaging, myelography, and CT. Magnetic resonance imaging correctly characterized the extradural location of the cysts as well as the cyst contents as CSF, thus establishing the diagnosis. Magnetic resonance is helpful in the asse...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198807000-00023
更新日期：1988-07-01 00:00:00
abstract：:Vertebral artery tortuosity and loop formation are rare causes of cervical radiculopathy. The criterion standard for the detection of vertebral artery loop formation is digital subtraction angiography. Computed tomography (CT) and magnetic resonance imaging provide good accuracy in the evaluation of vertebral arteries...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/01.rct.0000146481.56700.da
更新日期：2005-01-01 00:00:00
abstract：:A 72-year-old woman with previously symptomatic internal carotid artery occlusion subsequently presented with an acute hemispheric deficit. The patient was initially diagnosed as having an ischemic infarction but eventually was shown to have a subacute subdural hematoma with delay in surgical evacuation and a major pe...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198909000-00029
更新日期：1989-09-01 00:00:00
abstract：:The transfer of magnetization between a free and a bound pool of spins is described in terms of the respective longitudinal relaxation times and the life times of spins in each pool. The effect of an off resonance radiofrequency (RF) pulse in producing saturation in the bound pool and a consequent decrease in both the...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199201000-00003
更新日期：1992-01-01 00:00:00
abstract：OBJECTIVE:We describe a manual segmentation and image fusion method to assess the relationship between liver tumors and the radiofrequency ablation zone depicted on cross-sectional imaging. CONCLUSIONS:Manual fusion of segmented images of hepatic tumors from a preprocedural scan with the ablation zone depicted on the ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/RCT.0b013e3181c4f797
更新日期：2010-03-01 00:00:00
abstract：OBJECTIVE:Our retrospective study was performed to reassess the common dynamic CT manifestations of cystic tumors of the pancreas and to determine whether they might allow the differentiation between benign and malignant tumors. MATERIALS AND METHODS:Dynamic CT examinations of 19 patients with 20 cystic tumors of the ...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-199405000-00015
更新日期：1994-05-01 00:00:00
abstract：:Twenty-five patients with nonseminomatous germ cell carcinoma of the testis underwent CT and nuclear magnetic resonance (NMR) of the retroperitoneum followed by radical retroperitoneal lymph node dissection for surgical proof of metastatic disease. Computed tomography correctly predicted the presence or absence of ade...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：10.1097/00004728-198408000-00023
更新日期：1984-08-01 00:00:00
abstract：OBJECTIVE:We compared body coil (BC) MR images and endorectal surface coil (ERC) images with respect to the visualization of the cervix and adjacent tissues and the histopathologic correlations of the imaging findings. MATERIALS AND METHODS:Twenty-one patients with cervical carcinoma underwent MRI using both coils for...
journal_title：Journal of computer assisted tomography
pub_type： 杂志文章
doi：
更新日期：1994-09-01 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
pub_type： 杂志文章
doi：10.1097/00004728-198701000-00027
更新日期：1987-01-01 00:00:00
