Abstract:
:Low-dose transaxial tomography is a technique that can produce cross-sectional images of the hips and femurs in children to permit calculation of the angle of femoral anteversion. Transaxial tomography was compared with computed tomography in terms of measured radiation dose and image quality. Transaxial tomography was found to require at least 90% less radiation dose, and the images were judged to be acceptable for the determination of anteversion.
journal_name
Invest Radioljournal_title
Investigative radiologyauthors
Kushner DC,Cleveland RH,Ehrlich MG,Zaleske DJ,DeLuca SA,Herman TE,Webster EWsubject
Has Abstractpub_date
1985-12-01 00:00:00pages
978-82issue
9eissn
0020-9996issn
1536-0210journal_volume
20pub_type
杂志文章abstract:RATIONALE AND OBJECTIVES:Validation of new positron emission tomography (PET) tracers or magnetic (MR) imaging contrast agents is based on isolated rodent heart preparations. The use of larger animals could provide a more direct validation using the devices used for humans. METHODS:An isolated pig heart preparation ha...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199711000-00010
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVES:Multidetector-row computed tomography coronary images are usually analyzed in mid-diastole (MD). Because of slow coronary motion also in end-systole (ES), we evaluated the impact on image quality of including ES images and defined an efficient reconstruction protocol. MATERIAL AND METHODS:In 50 coronary mul...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000153930.34439.e4
更新日期:2005-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Emulsions of perfluorocarbons (PFCs) have been tested as blood substitutes. However, evidence exists that there is long-term retention of some PFCs by the organs of the reticuloendothelial system (RES). The authors investigate organ retention of the blood substitute component, perfluorotripropy...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199208000-00012
更新日期:1992-08-01 00:00:00
abstract:OBJECTIVES:To evaluate the potential of quantitative assays of vascular characteristics based on dynamic contrast-enhanced magnetic resonance imaging (MRI) using a macromolecular contrast medium (MMCM) to search for and measure effects of dimethyl sulfoxide (DMSO) on cancer vasculature with microscopic correlations. M...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e318164b71d
更新日期:2008-05-01 00:00:00
abstract::Screening chronic hemodialysis patients (CHD) for acquired cystic disease of the kidneys (ACDK) and its complications (hemorrhage and neoplasm) has become accepted management. We evaluated patients on CHD as well as patients on chronic peritoneal dialysis (CPD) for ACDK. The kidneys of 80 chronic dialysis patients wer...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:
更新日期:1987-09-01 00:00:00
abstract:OBJECTIVES:Comparison of intravenous Fenestra VC-enhanced computed tomography (CT) with gadopentetate dimeglumine and Ferucarbotran contrast-enhanced magnetic resonance imaging (MRI) for the in vivo imaging of hepatic ischemia/reperfusion injury (IRI) in a murine model. MATERIAL AND METHODS:After induction of hepatic ...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e318155aa2e
更新日期:2008-02-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Gray scale and power Doppler sonography are commonly used to evaluate cervical lymph nodes. This study was undertaken to identify which of the features used in ultrasound of cervical lymph nodes is readily applicable in routine clinical practice. METHODS:Two hundred and eight-six patients diag...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-200206000-00005
更新日期:2002-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Air microemboli may damage the cerebral microvasculature. The aim of this study was to evaluate the safety of ultrasound contrast agents composed of air microspheres with regard to cerebral damage when administered into the arterial system (ie, when not filtered by the capillary system of the l...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199803000-00001
更新日期:1998-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The purpose of this study was to determine whether cerebral fat embolism demonstrated reversible or irreversible findings in magnetic resonance (MR) imaging over time and to compare the features in MR images with histologic findings in a cat model. MATERIALS AND METHODS:MR images were obtained...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000077055.48406.e2
更新日期:2003-10-01 00:00:00
abstract::We investigated the feasibility of using intravascular ultrasound imaging to analyze vascular physiology in various arterial beds. Canine superficial femoral, external iliac, and common carotid arteries were harvested and suspended and perfused in a bath of oxygenated, heated, physiologic salt solution. A 6-Fr, 20-MHz...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199103000-00010
更新日期:1991-03-01 00:00:00
abstract:OBJECTIVES:Contrast-enhanced ultrasound imaging is increasingly being used in the clinic for assessment of tissue vascularity. The purpose of our study was to evaluate the effect of different contrast administration parameters on the in vivo ultrasound imaging signal in tumor-bearing mice using a maximum intensity pers...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e3181f9202d
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to investigate the impact on metal artifacts and dose efficiency of using a tin filter in combination with high-energy threshold (TH) images of a photon-counting detector (PCD) computed tomography (CT) system. MATERIALS AND METHODS:A 3D-printed spine with pedicle screws was scanned...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0000000000000535
更新日期:2019-04-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The authors compare the magnetic resonance (MR) phase contrast flow velocity measurements in varying concentric stenoses with invasive measurements obtained with a Doppler guidewire. METHODS:Flow velocity measurements were obtained using a calibrated 0.018 inch 12 MHz Doppler guidewire and a 1...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199808000-00001
更新日期:1998-08-01 00:00:00
abstract:RATIONALE AND OBJECTIVE:The purpose of this study was to investigate the feasibility, efficacy, and safety of ultrasound-guided percutaneous cryotherapy of stage T1 breast cancers. MATERIALS AND METHODS:Thirty patients with biopsy-confirmed breast cancers with tumor diameters of 15 mm or smaller (range, 5-15 mm; media...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000166935.56971.ff
更新日期:2005-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The influence of lipiodol injection on hepatic morphology and function was investigated in 119 rabbits with hepatic VX2 tumors. METHODS:The rabbits were divided into the following three groups, according to the materials injected via the proper hepatic artery: group 1 received doxorubicin (Adr...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199302000-00009
更新日期:1993-02-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to compare 3 contrast agents and to define feasible doses for quantitative lung perfusion imaging using the dual-bolus approach in dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI). MATERIALS AND METHODS:Ten healthy volunteers (6 males, 4 females; mean age, 23.5 yea...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0000000000000224
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVES:: To evaluate the performance of a gadolinium-based contrast compound (P846) as well as an ultra-small particle of iron oxide agent (P904) in contrast-enhanced magnetic resonance angiography (MRA) in rabbits and to compare those agents with gadoterate meglumine (Gd-DOTA) for first pass and steady state imagi...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e31821ae21f
更新日期:2011-08-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The effect of breathholding on pulmonary perfusion remains largely unknown. The aim of this study was to assess the effect of inspiratory and expiratory breathhold on pulmonary perfusion using quantitative pulmonary perfusion magnetic resonance imaging (MRI). METHODS AND RESULTS:Nine healthy v...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000149252.42679.78
更新日期:2005-02-01 00:00:00
abstract::Altered concentrations of brain beta endorphin and spinal cord encephalin have been reported in mice with iatrogenic arachnoiditis. We measured beta-endorphin concentration in cerebrospinal fluid (CSF) in normal monkeys and in monkeys with various degrees of arachnoiditis resulting from myelography and spinal surgery ...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198803000-00006
更新日期:1988-03-01 00:00:00
abstract::Because of relatively low acute toxicity, iosulamide meglumine has been recommended as an improved contrast material for intravenous cholangiography. It has been postulated that high doses of the compound could be given safely with the expectation of achieving greater biliary excretion and improved opacification of th...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198105000-00016
更新日期:1981-05-01 00:00:00
abstract:PURPOSE:To evaluate the dependency of tumor contrast enhancement (CE) in regard to protein-binding properties of contrast agents, using 4 different agents with a wide range of protein-binding capacities in a standardized rat brain glioma model. MATERIAL AND METHODS:Sixteen rats with implanted brain gliomas were evalua...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e318191a334
更新日期:2009-02-01 00:00:00
abstract::Using simple surgical techniques, experimental carotid aneurysms are created which simulate some types of human berry aneurysms, both in hemodynamic and radiographic behavior. End to side anastomoses of an external jugular vein graft to the common carotid artery can be carried out by radiologic personnel with no forma...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-197703000-00009
更新日期:1977-03-01 00:00:00
abstract::The hardcopy recording technologies of video cameras, slow-scan (digital spot) recorders, and laser film printers are presented and compared. Slow-scan (digital spot) recorders offer a few advantages when compared with multiformat video cameras. But only laser film printers provide the high-quality hardcopy recordings...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199102000-00017
更新日期:1991-02-01 00:00:00
abstract::An allergic, immunologic mechanism for certain adverse reactions to radiocontrast agents has been postulated on the basis of clinical and theoretical considerations. One obstacle to the acceptance of this allergic theory has been the inability to demonstrate significant antibodies with specificity for these agents. In...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-197609000-00002
更新日期:1976-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess and compare the overall performance, reliability, variability, as well as the accuracy of diffusion tensor imaging (DTI) and fiber tracking metrics, for the muscles of the calf at 3 T and 7 T. MATERIALS AND METHODS:Ten volunteers (5 males; mean age, 29.1 ± 4.7 years), with...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0000000000000508
更新日期:2019-01-01 00:00:00
abstract::Thromboembolic complications occurring during angiography may result from a number of different causes. Catheters and guidewires can interact with blood to form thrombi; this tendency is related to wall defects and the chemical composition and structural characteristics of the catheters and guidewires. Nonthrombic sou...
journal_title:Investigative radiology
pub_type: 杂志文章,评审
doi:10.1097/00004424-198811002-00009
更新日期:1988-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:High signal intensity in the basal ganglia on T1-weighted MR imaging has been reported in chronic manganese (Mn) poisoning. However, the exact meaning of the high signal intensity remains unclear: does it result from Mn itself, secondary pathologic changes of the brain tissue, or both? The goal...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199906000-00001
更新日期:1999-06-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to develop a method to determine hepatic and renal clearance of the 2 diastereoisomers (Gd-A, Gd-B) of Gd-EOB-DTPA separately. MATERIALS AND METHODS:Between July 2017 and February 2018, 41 patients with hepatic disease were prospectively included. For each patient, 1 mL of iopromid...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0000000000000622
更新日期:2020-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To develop a new animal model for the evaluation of the renal tolerance of contrast agent and its application to diatrizoate and iotrolan injections in comparison to saline and mannitol solution. MATERIALS AND METHODS:The nephrotoxic potential of intravenously injected contrast agents in Beagl...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000087096.61127.13
更新日期:2003-11-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Iopromide is a new monomeric, nonionic contrast agent that exhibits low osmolality and low viscosity in high concentration in aqueous solutions. Double-blind, randomized clinical trials have established the efficacy, safety, and tolerance of iopromide for excretory urography, coronary angiograp...
journal_title:Investigative radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004424-199405001-00015
更新日期:1994-05-01 00:00:00