Abstract:
PURPOSE:To collect up-to-date data in healthy children to create a digital hand atlas (DHA) that can be used to evaluate, on the basis of the Greulich and Pyle atlas method, racial differences in skeletal growth patterns of Asian, African American, white, and Hispanic children in the United States.
MATERIALS AND METHODS:This retrospective study was HIPAA compliant and approved by the institutional review board. Informed consent was obtained from all subjects or their guardians. From May 1997 to March 2008, a DHA containing 1390 hand and wrist radiographs obtained in male and female Asian, African American, white, and Hispanic children with normal skeletal development was developed. The age of subjects ranged from 1 day to 18 years. Each image was read by two pediatric radiologists working independently and without knowledge of the subject's chronologic age, and evaluation was based on their experience with the Greulich and Pyle atlas. Statistical analyses were performed with the paired-samples t test and analysis of variance to study racial differences in growth patterns. P journal_name journal_title authors doi subject pub_date pages issue eissn issn pii journal_volume pub_type
相关文献
RADIOLOGY文献大全abstract:PURPOSE:To prospectively evaluate accuracy and predictive values of Doppler ultrasonographic (US) measurement of portal blood velocity (PBV) and splenic pulsatility index (SPI) in diagnosis of clinically relevant acute rejection in patients with clinicobiochemical hepatic dysfunction after orthotopic liver transplantat...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2352040506
更新日期:2005-05-01 00:00:00
abstract::Local relapse was suspected in 26 women treated conservatively for breast cancer. All women underwent routine magnetic resonance (MR) imaging and a dynamic MR subtraction study after injection of gadolinium-tetraazacyclododecanetetra-acetic acid. Twelve women had no local relapse. Surgical biopsy enabled confirmation ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.188.2.8327700
更新日期:1993-08-01 00:00:00
abstract::In a series of 526 consecutive, unprepared patients examined by ultrasound, the gallbladder was visualized in 507 (96%). The average wall thickness was 2 mm or less in 97% of asymptomatic subjects without cholelithiasis and 3 mm or greater in 45% of those with choletithiasis. Pathologic correlation of increased thickn...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/133.3.693
更新日期:1979-12-01 00:00:00
abstract::The sonograms of 34 patients with surgically proved pelvic hemoperitoneum were reviewed. In 15 of these patients clotted blood was found at surgery in the pelvis or cul-de-sac. In nine of these patients (60%), ultrasound demonstrated echogenic fluid collections or "masses" with an echogenicity equal to or greater than...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.145.1.7122870
更新日期:1982-10-01 00:00:00
abstract::Scattered radiation and veiling glare in digital subtraction angiography degrade contrast signals in a nonlinear and nonuniform way. This effect prohibits direct use of image data for accurate iodine measurement or energy subtraction imaging. Two techniques based on the use of scanning lead bars were proposed to measu...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.157.1.3898220
更新日期:1985-10-01 00:00:00
abstract::To explore the usefulness of intraluminal ultrasound (US) for diagnostic imaging of the female urethra, 22 female patients with different degrees of urinary incontinence and 10 female patients with normal continence underwent examination by means of a 20-MHz intravascular US system. Contiguous sections were used for t...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.187.1.8451400
更新日期:1993-04-01 00:00:00
abstract:PURPOSE:To assess the effect of using a lossy Joint Photographic Experts Group standard for wavelet image compression, JPEG2000, on pulmonary nodule detection at low-dose computed tomography (CT). MATERIALS AND METHODS:One hundred sets of lung CT data ("cases") were compressed to 30:1, 20:1, and 10:1 levels by using a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2281020254
更新日期:2003-07-01 00:00:00
abstract:PURPOSE:To use color Doppler flow ultrasonography (US) for investigation of rapid regional motion of cerebrospinal fluid (CSF) in infants with subarachnoid hemorrhage or meningitis. MATERIALS AND METHODS:Sixty-four transfontanellar and transcranial color Doppler US scans of the cerebral aqueduct, ventricles, and basal...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.192.2.8029410
更新日期:1994-08-01 00:00:00
abstract::Percutaneous angioplasty and placement of balloon-expandable intraluminal stents were performed in 12 iliac occlusions in 12 patients. Indications were limb salvage in seven and claudication in five. After successful stenting, ankle-brachial indexes improved by 0.15 or more in 11 of 12 patients (mean increase, 0.40), ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/172.3.953
更新日期:1989-09-01 00:00:00
abstract::High-resolution real-time ultrasound with either a 7.5- or 10-MHz transducer was used to localize 7/9 nonpalpable breast masses previously detected by mammography and to determine where the biopsy needle should be inserted. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.151.3.6718740
更新日期:1984-06-01 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 prospectively evaluate the diagnostic performance of magnetic resonance (MR) spectroscopy in patients with suspicious lesions or biopsy-proved cancers at MR imaging by using histologic findings as the reference standard. MATERIALS AND METHODS:After institutional review board approval and informed consent we...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2393051046
更新日期:2006-06-01 00:00:00
abstract:PURPOSE:To determine the safety and diagnostic accuracy of a provocative protocol with heparin and urokinase to induce bleeding and determine the source in patients with chronic gastrointestinal hemorrhage. MATERIALS AND METHODS:Nine patients had gastrointestinal bleeding from an indeterminate source and had negative ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.207.1.9530310
更新日期:1998-04-01 00:00:00
abstract::The authors have occasionally observed nodular areas abutting the lateral diaphragmatic surface and extending into the posterior pararenal space on computed tomographic (CT) scans. Review of the anatomy literature revealed that this finding represents inferolateral extension of the lateral arcuate ligaments, which ref...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.185.1.1523290
更新日期:1992-10-01 00:00:00
abstract::Twenty-nine subjects with occupational asbestos exposure and clinical asbestosis were examined with high-resolution computed tomography (HRCT) to determine its sensitivity, relative to that of conventional computed tomography (CT), for detection of benign asbestos-related disease. Thin-section HRCT scans were obtained...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.166.3.3340770
更新日期:1988-03-01 00:00:00
abstract:PURPOSE:To evaluate transcatheter arterial embolization in patients with hepatocellular carcinoma, portal vein tumor thrombus, and arterioportal shunts. MATERIALS AND METHODS:Ten patients with hepatocellular carcinoma, portal vein tumor thrombus, and severe arterioportal shunting were identified; in these patients, po...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.204.3.9280260
更新日期:1997-09-01 00:00:00
abstract::Seven infants born at our institution between July 1979 and June 1982 had congenital diaphragmatic hernia (CDH). Four cases of CDH were correctly identified by fetal ultrasonography. Diagnosis relied upon the demonstration of abdominal organs within the thorax. During this period, no false positive diagnoses of CDH we...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.148.1.6856820
更新日期:1983-07-01 00:00:00
abstract::Purpose To evaluate the safety and efficacy of palliative treatment of patients with pathologic pelvic by using fluoroscopy and cone-beam CT needle guidance software to perform percutaneous fixation by internal cemented screw (FICS). Materials and Methods This single-center study involved retrospective analysis of 100...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2018181105
更新日期:2019-02-01 00:00:00
abstract:PURPOSE:To determine if wrist arthrography changes surgeons' diagnoses and treatment plans for patients with chronic wrist pain. MATERIALS AND METHODS:Bilateral, three-compartment wrist arthrography was performed in 64 patients. Prospective questionnaires evaluated surgeons' diagnoses and management plans at three sta...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.200.3.8756940
更新日期:1996-09-01 00:00:00
abstract::An extremely rare occurrence of third-degree burns was induced in the medial calves of a male patient with unusual anatomy (after resection and radiation therapy of a liposarcoma) during conventional magnetic resonance (MR) imaging on a clinical 1.5-T MR system that operated without any external conductor present and ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.200.2.8685360
更新日期:1996-08-01 00:00:00
abstract::Purpose To determine the effect of radiation dose and iterative reconstruction (IR) on noise, contrast, resolution, and observer-based detectability of subtle hypoattenuating liver lesions and to estimate the dose reduction potential of the IR algorithm in question. Materials and Methods This prospective, single-cente...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2017161736
更新日期:2017-09-01 00:00:00
abstract::Purpose To evaluate whether dual-selectin-targeted US molecular imaging allows longitudinal monitoring of anti-inflammatory treatment effects in an acute terminal ileitis model in swine. Materials and Methods The Institutional Animal Care and Use Committee approved all animal studies. Fourteen swine with chemically in...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2018172600
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:To investigate the histopathologic anatomy of calcium pyrophosphate dihydrate (CPPD) crystal deposition in and around the atlantoaxial joint and the association between CPPD crystal deposition and subchondral cysts, erosions, and fracture involving the odontoid process of the axis. MATERIALS AND METHODS:One ad...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.216.1.r00jl36213
更新日期:2000-07-01 00:00:00
abstract::Computed tomography (CT) is the modality of choice for evaluation of pancreatic disease. In this prospective study, images obtained with spiral CT, which enables examination of a region of the body in a single breath-hold, were compared with those obtained by means of dynamic CT with automatic table incrementation in ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.183.3.1584940
更新日期:1992-06-01 00:00:00
abstract:PURPOSE:To clarify the computed tomographic (CT) features of focal organizing pneumonia. MATERIALS AND METHODS:The authors retrospectively studied CT scans of 18 patients with histologically proved focal organizing pneumonia. Chest radiographs in all 18 patients suggested bronchogenic carcinoma. RESULTS:Seventeen of ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.189.1.8372180
更新日期:1993-10-01 00:00:00
abstract::Sixteen patients with biliary atresia and 11 patients with neonatal hepatitis were studied preoperatively with either Tc-99m-diethyl-IDA or TC-99m-diisopropyl-IDA. Two parameters were evaluated: hepatocyte clearance and time to appearance of radioactivity in the intestine. Two observers, using a visual grading system ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.146.2.6681570
更新日期:1983-02-01 00:00:00
abstract::A case of a postcholecystectomy patient is presented in which an initially grossly dilated common hepatic duct returned to normal size within several minutes. We have tried to explain this phenomenon using known facts abut bile duct elasticity and bile flow, and conclude that such rapid size change probably only occur...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.140.1.7244220
更新日期:1981-07-01 00:00:00
abstract::Background Traumatic brachial plexus injuries affect 1% of patients involved in major trauma. MRI is the best test for traumatic brachial plexus injuries, although its ability to differentiate root avulsions (which require urgent reconstructive surgery) from other types of nerve injury remains unknown. Purpose To eval...
journal_title:Radiology
pub_type: 杂志文章,meta分析
doi:10.1148/radiol.2019190218
更新日期:2019-10-01 00:00:00
abstract::Emission computed tomography (ECT) studies were performed on test objects and dogs. Conjugate views were obtained for 60 to 120 projections equispaced around 360 degrees by rotation of the subjects in front of a gamma camera. A convolution reconstruction algorithm in which gamma ray attenuation corrections are include...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/129.1.187
更新日期:1978-10-01 00:00:00
abstract::Brain scintiphotography in three patients with the clinical characteristics of adrenal leukodystrophy demonstrated focal areas of increased uptake of the radionuclide. Histological examination of cerebral tissue corresponding to the abnormal foci on the scan revealed sudanophilic leukodystrophy. These findings suggest...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/114.3.667
更新日期:1975-03-01 00:00:00