Abstract:
PURPOSE:To compare the computed tomographic (CT) findings of tuberculosis and Mycobacterium avium-intracellulare (MAI) infection in immunocompetent patients. MATERIALS AND METHODS:Seventy-seven consecutive immunocompetent patients with culture-proved pulmonary mycobacterial infection (45 with pulmonary tuberculosis, 32 with MAI) underwent thin-section CT. CT scans were randomized and reviewed by two observers; decisions were reached by consensus. RESULTS:Micronodules, consolidation, and cavity formation in the lung were seen with similar frequency in pulmonary tuberculosis and MAI cases. Twenty-three patients (51%) with tuberculosis and four patients (12%) with MAI had interlobular septal thickening (P < .001). Twelve patients (27%) with tuberculosis and 30 patients (94%) with MAI had bronchiectasis (P < .001). Bronchiectasis was seen in a mean of 4.6 +/- 1.8 and 1.8 +/- 1.6 lobes (+/- standard deviation) in each patient with MAI and with tuberculosis, respectively (P < .01). CONCLUSION:Although CT findings of pulmonary tuberculosis and MAI are similar, interlobular septal thickening is more common in patients with tuberculosis and bronchiectasis is more common and more extensive in patients with MAI.
journal_name
Radiologyjournal_title
Radiologyauthors
Primack SL,Logan PM,Hartman TE,Lee KS,Müller NLdoi
10.1148/radiology.194.2.7824720subject
Has Abstractpub_date
1995-02-01 00:00:00pages
413-7issue
2eissn
0033-8419issn
1527-1315journal_volume
194pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::A summary of the activities of the International Commission on Radiation Units and Measurements since 1973 is presented. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/127.2.549
更新日期:1978-05-01 00:00:00
abstract:PURPOSE:To develop a semiquantitative magnetic resonance (MR) imaging bone marrow burden (BMB) score with inclusion of both axial and peripheral bone marrow in Gaucher disease as an alternative to MR imaging with the Dixon quantitative chemical shift imaging (QCSI) technique. MATERIALS AND METHODS:Two experienced musc...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2292020296
更新日期:2003-11-01 00:00:00
abstract::Fifty-one pediatric patients who were suspected of having central nervous system (CNS) tumors underwent magnetic resonance (MR) imaging using a 0.35 T Diasonics MT/S system. Pulse intervals (TR) ranged from 0.5 to 2.0 seconds with echo delays (TE) of 28 and 56 msec. The ability of MR and contrast-enhanced CT to detect...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.155.1.3975390
更新日期:1985-04-01 00:00:00
abstract:PURPOSE:To determine whether intraductal perfusion with chilled saline reduces thermal injury to bile ducts during radiofrequency (RF) ablation. MATERIALS AND METHODS:In swine, anesthesia was induced and the common bile duct was surgically cannulated with a pediatric feeding tube. RF thermal lesions were created adjac...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2321030210
更新日期:2004-07-01 00:00:00
abstract:PURPOSE:To determine the computed tomographic (CT) findings in patients with allergic fungal sinusitis. MATERIALS AND METHODS:The authors retrospectively reviewed CT scans and surgical and histopathologic reports in 45 patients (27 male, 18 female; age range, 8-68 years) with allergic fungal sinusitis from multiple in...
journal_title:Radiology
pub_type: 杂志文章,多中心研究
doi:10.1148/radiology.207.2.9577490
更新日期:1998-05-01 00:00:00
abstract::Twenty-six patients with an eqivocal portal defect on conventional nuclear images were evaluated with a multiplane tomographic nuclear scanner and gray scale ultrasound. In most cases the correct determination (normal or abnormal) for an area of decreased uptake could be made from the multiplane tomographic scans. Whe...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/122.3.773
更新日期:1977-03-01 00:00:00
abstract::An overview of current air-contrast stomach examination techniques is offered: (a) Hampton's technique which does not use distension; (b) the Japanese method which utilizes the relaxant drug Buscopan, good distension, and much patient rotation; (c) a third method in which no drugs are used but more distension is obtai...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/117.3.743
更新日期:1975-12-01 00:00:00
abstract::Computed tomographic brain scans of the newborn exhibit relatively greater lucency of white matter compared to the mature patient. This study correlated the x-ray attenuation of white matter with gestational age in 23 neonates, both premature and term. The gray-white matter attenuation difference was calculated and pl...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.139.1.7208910
更新日期:1981-04-01 00:00:00
abstract::Twenty-four patients with 29 cerebrovascular malformations were evaluated with a combination of computed tomography (CT), angiography, and magnetic resonance (MR) imaging. Characteristics of the malformations on MR images were reviewed retrospectively, and a comparative evaluation of MR and CT images was made. Of 14 a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.156.2.4011900
更新日期:1985-08-01 00:00:00
abstract:PURPOSE:To prospectively determine whether dynamic contrast material-enhanced (DCE) magnetic resonance (MR) quantitative parameters correlate with fibrosis and microvascular density (MVD) in malignant and benign solid pancreatic focal lesions and nontumoral pancreatic tissue. MATERIALS AND METHODS:The institutional re...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11103515
更新日期:2011-11-01 00:00:00
abstract::In obese individuals, a localized deposit of normal fat may simulate a mediastinal tumor on chest radiography. It is important to consider this possibility in the differential diagnosis to avoid needless surgery and facilitate continued observation when appropriate. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/119.1.74
更新日期:1976-04-01 00:00:00
abstract::The purpose of this study was to develop an automated scheme to facilitate detection of localized ground-glass opacity (GGO) in the lung at computed tomography (CT). Institutional review board approval and informed consent were not required. Two radiologists reviewed CT images from 14 patients (five men, nine women) w...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2372041461
更新日期:2005-11-01 00:00:00
abstract:PURPOSE:To investigate the cross-sectional relationships among multiple quantitative brain magnetic resonance (MR) imaging measurements in patients with relapsing-remitting versus chronic progressive multiple sclerosis (MS). MATERIALS AND METHODS:Thirty-eight patients with MS (relapsing-remitting, 26, chronic progress...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.210.3.r99mr44769
更新日期:1999-03-01 00:00:00
abstract::Background The hardware and software differences between MR vendors and individual sites influence the quantification of MR spectroscopy data. An analysis of a large data set may help to better understand sources of the total variance in quantified metabolite levels. Purpose To compare multisite quantitative brain MR ...
journal_title:Radiology
pub_type: 杂志文章,多中心研究
doi:10.1148/radiol.2020191037
更新日期:2020-04-01 00:00:00
abstract::The radiation dose and the anatomic detail of computed tomography (CT) and conventional tomography were studied in 18 patients with suspected acoustic neuroma, cholesteatoma, malignant tumor, and temporal bone fracture. It is concluded that CT is the technique of choice in patients suspected of having acoustic neuroma...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.134.2.7352220
更新日期:1980-02-01 00:00:00
abstract::Two patients with pneumothorax had ventilation-perfusion studies to rule out the possibility of pulmonary embolism; the presence of air in the pleural space was not known to the authors when the study was analyzed. A typical ventilatory pattern characterized by small volume difference at total lung capacity followed b...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/129.1.119
更新日期:1978-10-01 00:00:00
abstract::Ten ureteral strictures that developed in nine patients after renal transplantation were managed with balloon catheter dilation and placement of a ureteral stent. Four strictures were successfully dilated (40%), with a follow-up of 15-42 months (mean, 29 months). Comparison of these cases with the six cases of unsucce...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.186.3.8430180
更新日期:1993-03-01 00:00:00
abstract::In an effort to minimize distortion and artifacts on magnetic resonance images obtained with electrocardiographic (ECG) gating, the authors tested the use of ECG electrodes and leads made of carbon fiber. These materials caused no image degradation and, because the leads were reinforced with plastic, were less vulnera...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.171.3.2717770
更新日期:1989-06-01 00:00:00
abstract:PURPOSE:To prospectively evaluate the relationships between change in white matter (WM) anisotropy and (a) patient age at craniospinal irradiation (CSI), (b) CSI dose, and (c) time of magnetic resonance (MR) imaging since CSI and to determine the effect of these neurotoxicity risk factors on WM anisotropy in posttreatm...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2362041066
更新日期:2005-08-01 00:00:00
abstract:PURPOSE:To prospectively assess quantitatively the inherent contrast of electromagnetic (EM) properties that can be imaged by using available technology in women with abnormal findings at conventional breast imaging who underwent subsequent biopsy. MATERIALS AND METHODS:The protocol was HIPAA compliant and approved by...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2432060286
更新日期:2007-05-01 00:00:00
abstract:PURPOSE:To validate coronary sinus flow measurements for quantification of global left ventricular (LV) perfusion by means of velocity-encoded cine (VEC) magnetic resonance (MR) imaging and flow probes. MATERIALS AND METHODS:Measurements of coronary sinus flow were performed in seven dogs by using VEC MR imaging at ba...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.217.2.r00nv10487
更新日期:2000-11-01 00:00:00
abstract::Adenomatous hyperplastic nodules (AHNs) in the cirrhotic liver may be precurosors of hepatocellular carcinoma. These nodules have been demonstrated more frequently because of the increased use of ultrasonography (US) in the screening of high-risk patients. Treatment is a problem because surgical resection of a precanc...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.170.1.2642340
更新日期:1989-01-01 00:00:00
abstract:UNLABELLED:The performance of a diagnostic test is often expressed in terms of sensitivity and specificity compared with the reference standard. Calculations of sensitivity and specificity commonly involve multiple observations per patient, which implies that the data are clustered. Whether analysis of sensitivity and ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.12120509
更新日期:2012-12-01 00:00:00
abstract::Power Doppler sonography was used in eight symptomatic knees in seven patients with arthritis before and after joint aspiration and intraarticular administration of steroids. A qualitative decrease in synovial perfusion was observed in all eight knees, and symptoms improved in seven of the eight cases. These prelimina...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.198.2.8596870
更新日期:1996-02-01 00:00:00
abstract::The purpose of this study was to develop criteria for distinguishing normal and degenerated lumbar intervertebral disks. Cryomicrotome sections from and magnetic resonance images of 31 cadavers were reviewed. The immature nucleus pulposus, found up to age 2 years; the transitional nucleus pulposus, found in teenagers;...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.170.2.2911680
更新日期:1989-02-01 00:00:00
abstract:PURPOSE:To evaluate the feasibility of breast computed tomography (CT) in terms of radiation dose and image quality. MATERIALS AND METHODS:Validated Monte Carlo simulation techniques were used to estimate the average glandular dose (AGD). The calculated photon fluence at the detector for high-quality abdominal CT (120...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2213010334
更新日期:2001-12-01 00:00:00
abstract::Computed tomography (CT) of the spine after intravenous contrast enhancement has been used in 4 patients with arteriovenous malformation (AVM) of the spinal cord. The enlarged, contrast-filled vessels constituting the malformation are visualized on CT scans. There was good correspondence between CT and selective angio...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/123.2.351
更新日期:1977-05-01 00:00:00
abstract:PURPOSE:To determine the ultrasonographic (US) findings of normal and acutely torn posterior cruciate ligament (PCL) of the knee and evaluate the usefulness of US in the injured PCL. MATERIALS AND METHODS:US images were obtained in 30 knees in 15 asymptomatic volunteers as a control group and in 35 patients clinically...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.219.2.r01ma22375
更新日期:2001-05-01 00:00:00
abstract::Magnetic resonance images of cranial bone marrow in 238 patients (246 examinations) less than 25 years old were reviewed to establish normal age-related standards. Bone marrow in the clivus and calvaria had uniformly low signal intensity (grade 1) on T1-weighted images in most infants less than 1 year old. The number ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.171.1.2928520
更新日期:1989-04-01 00:00:00
abstract::After institutional review board approval, informed consent was obtained from six patients (four men and two women, aged 47-74 years) with a total of six tumors of the liver dome. These patients were treated by means of radiofrequency (RF) ablation with computed tomographic (CT) guidance and a transthoracic approach. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2362040992
更新日期:2005-08-01 00:00:00