Abstract:
:To improve the efficiency of magnetic resonance imaging of the total spine, the authors developed a coil holder and marker system to accurately localize the level of the spine imaged. The patient's external auditory canal and the alignment light on the imager are lined up with marks on the coil holder. The spine is then imaged in three segments by using a 24-cm field of view. The device has been successful in 20 of the 23 patients in whom it was used. The three failures were due to technical problems.
journal_name
Radiologyjournal_title
Radiologyauthors
Abrahams JJ,Lange RCdoi
10.1148/radiology.172.3.2772200subject
Has Abstractpub_date
1989-09-01 00:00:00pages
869-71issue
3eissn
0033-8419issn
1527-1315journal_volume
172pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Purpose To determine the effects of patient age and comorbidity level on life expectancy (LE) benefits associated with imaging follow-up of Bosniak IIF renal cysts and pancreatic side-branch (SB) intraductal papillary mucinous neoplasms (IPMNs). Materials and Methods A decision-analytic Markov model to evaluate LE ben...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2018171701
更新日期:2018-05-01 00:00:00
abstract:PURPOSE:To investigate the effect of injection rate of contrast medium on aortic and hepatic peak enhancement at computed tomography. MATERIALS AND METHODS:Early pharmacokinetics of contrast enhancement was analyzed theoretically and simulated with a compartment model. Contrast enhancement curves were generated from t...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.206.2.9457200
更新日期:1998-02-01 00:00:00
abstract::In 3,600 patients evaluated with technetium-99m sulfur colloid for metastatic liver disease, 40 had equivocal scans due to a solitary defect in the interior margin of the right lobe. In these patients, the authors differentiated the gallbladder fossa from a metastatic focus using one of two new hepatobiliary agents: t...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.136.2.7403530
更新日期:1980-08-01 00:00:00
abstract:PURPOSE:To determine if magnetic resonance (MR) imaging data can be used to create rigid models that are accurate representations of the right ventricular outflow tract (RVOT) and pulmonary trunk anatomy and if such models can be used to refine the selection of patients for percutaneous pulmonary valve implantation (PP...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2422051994
更新日期:2007-02-01 00:00:00
abstract:PURPOSE:To determine the individual technical costs of general diagnostic radiographic, ultrasonographic (US), computed tomographic (CT), magnetic resonance (MR) imaging, and scintigraphic examinations and interventional radiology. MATERIALS AND METHODS:The Radiology Cost and Productivity Benchmarking Study method of ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.216.1.r00jl18269
更新日期:2000-07-01 00:00:00
abstract::An anastomosis between the left renal and left ascending lumbar veins may appear as a mass on CT scans due to a varicosity where the veins separate. Intravenous injection of contrast material reveals the vascular nature of the mass. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.152.2.6739820
更新日期:1984-08-01 00:00:00
abstract::In tumor radiobiology, the hypoxic cell has become especially important because of recent evidence of acute hypoxic regions within experimental tumors. The impact of hyperthermia on the development of acute hypoxia is discussed. Two experiments for studying hyperthermia and hypoxia in tumors are presented. Knowledge o...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiology.137.3.7003650
更新日期:1980-12-01 00:00:00
abstract::Background Isocitrate dehydrogenase (IDH) mutation has become one of the most important prognostic biomarkers in glioma management. Measurement of 2-hydroxyglutarate (2HG) with MR spectroscopy has shown high pooled sensitivity, although false-positive results with MR spectroscopy have been reported. Purpose To investi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2019182200
更新日期:2019-06-01 00:00:00
abstract::A commercially available double-lumen central venous catheter that can be inserted over a 0.018-inch guide wire was used for ureteral perfusion studies in three infants. Complications or difficulties were not encountered in any patients. This technique allows simultaneous monitoring of perfusion and intrarenal pressur...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.181.1.1887050
更新日期:1991-10-01 00:00:00
abstract::Digital subtraction angiography (DSA) using a 41-cm (16-in.) image intensifier was performed in 144 patients with peripheral vascular insufficiency. In most cases the entire peripheral vascular bed from the renal arteries to the popliteal trifurcation was demonstrated with four intravenous injections and four exposed ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.149.3.6359260
更新日期:1983-12-01 00:00:00
abstract:PURPOSE:To analyze the contribution of the transverse relaxation parameter (T2), macroscopic field inhomogeneities (B0), and blood volume fraction (BVf) to blood oxygen level-dependent (BOLD)-based magnetic resonance (MR) measurements of blood oxygen saturation (SO2) obtained in a brain tumor model. MATERIALS AND METH...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11110518
更新日期:2012-02-01 00:00:00
abstract:PURPOSE:To evaluate breast imaging training and knowledge of radiology residents over a 3-year period. MATERIALS AND METHODS:From 1992 through 1994, the American College of Radiology (ACR) sponsored a 1-day comprehensive breast imaging seminar, which was attended by 2,249 radiology residents at the 6-week radiologic-p...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.201.3.8939230
更新日期:1996-12-01 00:00:00
abstract:PURPOSE:To evaluate characteristics of delayed ischemic stroke after stent-assisted coil placement in cerebral aneurysms and to determine the optimal duration of dual antiplatelet therapy for its prevention. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and the requirem...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.14140070
更新日期:2014-10-01 00:00:00
abstract::The diagnostic accuracy of both planar and single-photon emission computed tomography (SPECT) bone scintigraphy, radionuclide angiography, arthrography, and conventional radiography was evaluated in 36 patients with temporomandibular joint (TMJ) dysfunction undergoing preoperative testing. The sensitivity of SPECT bon...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.149.2.6226060
更新日期:1983-11-01 00:00:00
abstract::To determine the optimal coil and patient position for magnetic resonance imaging of patients with silicone breast implants, images obtained with body, circular surface, flexible, single shoulder, and dual shoulder coils in various numbers of patients were compared with regard to signal-to-noise ratio (S/N), decay of ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.187.1.8451430
更新日期:1993-04-01 00:00:00
abstract::Various complications have been reported after insertion of the Greenfield filter. This report describes an unusual complication after suprarenal placement of this filter: spreading of the filter struts, with perforation of the inferior vena cava, and penetration of the aorta and a vertebral body, followed by fracture...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.172.3.2772180
更新日期:1989-09-01 00:00:00
abstract::In 25 patients, 12 with acute-subacute and 13 with chronic extensive femoropopliteal artery occlusions (mean length, 8 cm), a prospective study was performed after application of the Kensey catheter and subsequent performance of percutaneous transluminal angioplasty (PTA). Passage through the occlusion with the Kensey...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.182.1.1530760
更新日期:1992-01-01 00:00:00
abstract::Seventeen bilateral upper extremity lymphangiograms were obtained in patients with lymphoma referred for radiation therapy. The projection of the opacified axillary nodes is analyzed when using the mantle technique in various positions. The position of the lymph nodes varies considerably in the supine and prone positi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/122.1.227
更新日期:1977-01-01 00:00:00
abstract:PURPOSE:To study white matter (WM) changes in patients with Unverricht-Lundborg progressive myoclonus epilepsy (EPM1) caused by mutations in the cystatin B gene and in the cystatin B-deficient (Cstb-/-) mouse model and to validate imaging findings with histopathologic analysis of mice. MATERIALS AND METHODS:Informed c...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.13122458
更新日期:2013-10-01 00:00:00
abstract:PURPOSE:To perform a systematic review to evaluate the diagnostic accuracy of hepatobiliary (HPB) phase gadoxetic acid-enhanced MR imaging of the liver in the diagnosis of focal nodular hyperplasia (FNH) versus hepatocellular adenoma (HCA) and to identify the rate of (a) reported HCAs that are iso- or hyperintense to l...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.2015142986
更新日期:2015-11-01 00:00:00
abstract:PURPOSE:To describe thin-section pulmonary computed tomographic (CT) features in asymptomatic elderly individuals. MATERIALS AND METHODS:Institutional review board approval was given, and informed consent was obtained. Two study groups (older group, over 75 years of age; younger group, under 55 years) were prospective...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2512081242
更新日期:2009-05-01 00:00:00
abstract:PURPOSE:To analyze difficult diagnostic cases of malrotation to identify features crucial to accurate diagnosis. MATERIALS AND METHODS:The authors reviewed the radiographs and records of 81 symptomatic children who underwent surgery with a preoperative diagnosis of malrotation. Eleven had subtle rotational abnormaliti...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.198.3.8628870
更新日期:1996-03-01 00:00:00
abstract:PURPOSE:To determine the feasibility of a statistical classification strategy (SCS) and the identity of metabolites of bacterial and host origins that potentially contributed to the most discriminatory regions of magnetic resonance (MR) spectra from Staphylococcus aureus abscesses of biopsy material from controls, glio...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2361040869
更新日期:2005-07-01 00:00:00
abstract::Pulmonary tuberculosis has long been associated with the formation of cavities in the lung. Many reports in the literature indicate that the occurrence of air-fluid levels in tuberculosis is unusual. The authors present 18 cases of proved active cavitary tuberculosis where air-fluid levels occurred during the active p...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/127.2.315
更新日期:1978-05-01 00:00:00
abstract::A case of methotrexate-induced brain damage is presented. Computed tomography (CT) demonstrated a high-density mass lesion with a low-density area in the white matter which pathologically represented a large area of acute necrotizing cerebritis. CT appearance was indistinguishable from brain abscess. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/122.2.377
更新日期:1977-02-01 00:00:00
abstract::CT scans of 87 patients with subdural hematoma were compared to those of 393 patients with midline shift caused by other intracranial lesions with regard to attenuation changes in the lesion and the character of the ventricular deformity. Isoattenuating was exhibited by 25% of the subdural hematomas and 5% of the othe...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.1.149
更新日期:1979-01-01 00:00:00
abstract:PURPOSE:To evaluate the cochlear modiolus with thin-section magnetic resonance (MR) imaging in healthy subjects and patients with a large endolymphatic duct and sac, and to assess whether the cochlea is normal or abnormal in patients with a large endolymphatic duct and sac. MATERIALS AND METHODS:MR images were obtaine...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.213.3.r99dc05819
更新日期:1999-12-01 00:00:00
abstract::Prototype surface coil magnetic resonance (MR) images were obtained from phantoms and 42 subjects at 0.6 T to assess the feasibility of imaging relatively deep abdominal structures. Surface coil images demonstrated a two- to fourfold improvement in signal-to-noise ratio (SNR) when compared with whole-body coil images ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.157.2.4048450
更新日期:1985-11-01 00:00:00
abstract::Desferal was labeled with 111In and its distribution was studied in normal mice, rabbits bearing turpentine-induced abscesses, and rats bearing Staphylococcus aureus-induced abscesses. The results indicate that 111In Desferal may be used in abscess detection and localization. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/128.3.697
更新日期:1978-09-01 00:00:00
abstract::Relaxation times (T1 and T2) were measured in vivo in mongrel dogs at fields of 0.3, 0.5, 1.0, 1.35, and 1.5 tesla (T). T1 was measured using nine values of inversion time ranging from 10 to 1,280 msec. T2 was measured with a four-point multiple spin-echo sequence. Relaxation times were calculated for muscle, kidney c...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.156.3.2991980
更新日期:1985-09-01 00:00:00