Abstract:
:The goals of reconstructive surgery for scaphoid fracture nonunions include restoration of normal scaphoid length and shape by use of the contralateral scaphoid bone as a geometric model. A literature search revealed limited documentation of normal biometric measurements and no validation of scaphoid anatomic symmetry. A study was performed to provide normative data and evaluate the right-to-left symmetry of specific geometric measurements of the scaphoid. One hundred normal carpal scaphoid bones in 30 healthy subjects and 40 patients were examined with three-dimensional magnetic resonance (MR) imaging. Standardized oblique projections were reconstructed from each three-dimensional data set, and seven biometric measurements of each scaphoid were obtained. Normative data from the study group were obtained by means of analysis of all 100 scaphoids. Right-to-left symmetry was validated with the biometric measurements of both scaphoids in the healthy subjects. These data validate scaphoid symmetry and provide 95% confidence intervals for specific biometric measurements that are used for preoperative planning of surgical reconstruction of scaphoid nonunions.
journal_name
Radiologyjournal_title
Radiologyauthors
Smith DKdoi
10.1148/radiology.187.1.8451410subject
Has Abstractpub_date
1993-04-01 00:00:00pages
187-91issue
1eissn
0033-8419issn
1527-1315journal_volume
187pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Radionuclide findings in a case of cavernous sinus occlusion by an intracavernous aneurysm are described. A brain image obtained 10 minutes after injection of 99Tc pertechnetate shows diminished activity in the area of the right cavernous sinus and increased activity in the area of the right sylvian veins; these are a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/118.1.113
更新日期:1976-01-01 00:00:00
abstract::An international working group has modified the Atlanta classification for acute pancreatitis to update the terminology and provide simple functional clinical and morphologic classifications. The modifications (a) address the clinical course and severity of disease, (b) divide acute pancreatitis into interstitial edem...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.11110947
更新日期:2012-03-01 00:00:00
abstract::Thirty patients underwent 16-section multi-detector row computed tomographic (CT) angiography of the thorax with retrospective electrocardiographic gating. Institutional review board approval was obtained for retrospective analysis of CT scan data and records; patient informed consent was not required. Images reconstr...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2333030826
更新日期:2004-12-01 00:00:00
abstract::A prospective study to assess the usefulness of magnetic resonance (MR) imaging in the evaluation of endometrial carcinoma was undertaken by five institutions under the auspices of the National Cancer Institute. Six different MR imagers were used, ranging in magnetic field strength from 0.15 T to 1.5 T. For each unit,...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.179.3.2028000
更新日期:1991-06-01 00:00:00
abstract:PURPOSE:To measure the proportion of high-cost imaging generated by a radiologist's recommendation and to identify the imaging findings resulting in follow-up. MATERIALS AND METHODS:This retrospective HIPAA-compliant study had institutional review board approval, with waiver of informed consent. A recommended examinat...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11111091
更新日期:2012-02-01 00:00:00
abstract::The authors designed and built an overlapping surface coil assembly for magnetic resonance imaging of the spine. A small and a large coil are included, and use of one can be switched to the other without need for patient repositioning. The images are not degraded, and screening studies can immediately be followed by d...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.164.3.3615890
更新日期:1987-09-01 00:00:00
abstract::Four cases of severe skin reactions to the use of iocetamic acid as a contrast medium are reported. Although the incidence of this type of reaction was relatively small (1.8%), its severity induced the authors to discontinue the use of this medium. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/118.2.301
更新日期:1976-02-01 00:00:00
abstract:PURPOSE:To evaluate use of the transjugular intrahepatic portosystemic shunt (TIPS) as a nonsurgical approach for the management of Budd-Chiari syndrome (BCS). MATERIALS AND METHODS:Twelve patients with fulminant (n = 2), subacute (n = 5), or chronic (n = 5) BCS underwent TIPS placement. Hepatic venous obstruction was...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.197.3.7480760
更新日期:1995-12-01 00:00:00
abstract:PURPOSE:Quantification of regional cerebral blood flow (rCBF) and volume (rCBV) with dynamic magnetic resonance (MR) imaging. MATERIALS AND METHODS:After bolus administration of a paramagnetic contrast medium, rapid T2*-weighted gradient-echo images of two sections were acquired for the simultaneous creation of concen...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.193.3.7972800
更新日期:1994-12-01 00:00:00
abstract:PURPOSE:To perform a meta-analysis of renal arterial stent placement in comparison with renal percutaneous transluminal angioplasty (PTA) in patients with renal arterial stenosis. MATERIALS AND METHODS:Studies dealing with renal arterial stent placement (14 articles; 678 patients) and renal PTA (10 articles; 644 patie...
journal_title:Radiology
pub_type: 杂志文章,meta分析
doi:10.1148/radiology.216.1.r00jl0778
更新日期:2000-07-01 00:00:00
abstract:PURPOSE:To investigate the challenges and benefits of magnetic resonance (MR) imaging during brain tumor resection. MATERIALS AND METHODS:A short-bore 1.5-T MR system equipped with echo-planar-capable gradients was used in resection of brain tumors in 30 patients. MR sequences and need for contrast material enhancemen...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.215.1.r00ap31221
更新日期:2000-04-01 00:00:00
abstract::Magnetic resonance (MR) imaging was performed using a 1.5-T magnet on eight immature swine knees with surgically produced vertical and horizontal meniscal tears. Three radiologists, interpreting the images independently, detected all tears. Tears in the middle portion of the meniscus were best seen on sagittal views, ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.158.3.3945740
更新日期:1986-03-01 00:00:00
abstract::This study evaluated the feasibility of treatment of abdominal aortic aneurysm (AAA) by means of intraluminal bypass. Artificial aortic aneurysms with fusiform Dacron conduits were created at surgery , a weft-knit Dacron tube with balloon-expandable stents attached at both ends was inserted transfemorally through a 14...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.184.1.1535160
更新日期:1992-07-01 00:00:00
abstract:PURPOSE:To retrospectively measure repeat rates for high-cost imaging studies, determining their causes and trends, and the impact of radiologist recommendations for a repeat examination on imaging volume. MATERIALS AND METHODS:This HIPAA-compliant study had institutional review board approval, with waiver of informed...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2423051754
更新日期:2007-03-01 00:00:00
abstract::Seven patients with lung tumors underwent percutaneous implantation of iodine-125 sources into the tumor. Needle placement and seed implantation were effected with biplane fluoroscopy and a computer planning model based on computed tomography. No complications were encountered. Five of the seven patients underwent the...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.164.3.3615870
更新日期:1987-09-01 00:00:00
abstract::The authors describe the use of neodymium yttrium aluminum garnet laser introduced via a percutaneous catheter track for photocoagulation of a bleeding bile duct tumor. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.148.3.6878710
更新日期:1983-09-01 00:00:00
abstract::The classical abnormalities of von Recklinghausen disease (VRD) or neurofibromatosis are well recognized. However, vertebral scalloping and gauge defects of the anterior and lateral aspects have not been reviewed, to the authors' knowledge. Case reports of 3 patients with vertebral scalloping are presented. The classi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/131.1.89
更新日期:1979-04-01 00:00:00
abstract:PURPOSE:To evaluate the use of a redundant system in improving quality of care in the trauma setting by examining a subset of our quality assurance program. MATERIALS AND METHODS:Five hundred thirty-one consecutive abdominal and pelvic CT reports obtained in patients with trauma at a level I trauma center from August ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2241011470
更新日期:2002-07-01 00:00:00
abstract::Clinical, angiographic, scintigraphic and pathologic observations in myocardial contusion were correlated. Radionuclide imaging of the injured heart with 99mTc-Sn-polyphosphate provides an accurate diagnosis in acute, even mild, myocardial contusion. The study can be carried out without danger to the critically ill pa...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/116.3.679
更新日期:1975-09-01 00:00:00
abstract:PURPOSE:To prospectively quantify tumor response or progression in patients with lung cancer by using thin-section computed tomography (CT) and a semiautomated algorithm to calculate tumor volume and other parameter values. MATERIALS AND METHODS:This HIPAA-compliant study was institutional review board approved; infor...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2413051887
更新日期:2006-12-01 00:00:00
abstract::MRI is firmly established as an essential modality in the imaging of the temporal bone and lateral skull base. It is used to evaluate normal anatomic structures, evaluate for vestibular schwannomas, assess for inflammatory and/or infectious processes, and detect residual and/or recurrent cholesteatoma. It is also exte...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.2020201767
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:To demonstrate coronary sinus-left atrium connections and evaluate coronary sinus function and anatomy in detail by using multidetector computed tomography (CT). MATERIALS AND METHODS:In this institutional review board-approved retrospective study, the authors evaluated coronary CT angiograms obtained in 65 pa...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.11102278
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:To determine the accuracy of helical computed tomography (CT) without the oral, intravenous, or rectal administration of contrast material in confirming suspected acute appendicitis. MATERIALS AND METHODS:Three hundred consecutive patients referred from the departments of surgery and emergency medicine were ex...
journal_title:Radiology
pub_type: 临床试验,杂志文章
doi:10.1148/radiology.213.2.r99nv44341
更新日期:1999-11-01 00:00:00
abstract::With the recent improvements in diagnosis and treatment of distal radius and carpal injuries, the hand surgeons' expectations of relevant radiologic interpretation of imaging studies are heightened. Conventional radiographic examinations, as well as more sophisticated and invasive studies, have important roles in the ...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiology.219.1.r01ap1311
更新日期:2001-04-01 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::Between 1956 and 1978, nine patients with solitary plasmacytoma of bone (SPB) and seven with extramedullary plasmacytoma (EMP) were treated at the University of Washington Hospital and Swedish Tumor Institute. All but one patient had local radiotherapy. In the SPB group, six of nine patients progressed to multiple mye...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.135.1.7360960
更新日期:1980-04-01 00:00:00
abstract:PURPOSE:To prospectively evaluate the elastographic appearance of thyroid gland tumors and explore the potential sensitivity and specificity of ultrasonographic (US) elastography for differentiating benign and malignant tumors, with histopathologic analysis as the reference standard. MATERIALS AND METHODS:The study wa...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2363041248
更新日期:2005-10-01 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::The authors developed a free-breathing black-blood coronary magnetic resonance (MR) angiographic technique with a potential for exclusive visualization of the coronary blood pool. Results with the MR angiographic technique were evaluated in eight healthy subjects and four patients with coronary disease identified at c...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.219.1.r01mr07278
更新日期:2001-04-01 00:00:00
abstract:PURPOSE:To retrospectively compare sensitivity and specificity of magnetic resonance (MR) imaging, three-dimensional (3D) MR spectroscopy, combined MR imaging and 3D MR spectroscopy, and carbon 11 (11C)-choline positron emission tomography (PET)/computed tomography (CT) for intraprostatic tumor sextant localization, wi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2443061063
更新日期:2007-09-01 00:00:00