Expert learning system network for diagnosis of breast calcifications.

abstract：PURPOSE:The aim of this study was to evaluate the diagnostic performance of virtual noncalcium (VNCa) dual-energy computed tomography (DECT) reconstructions enabling visualization of bone marrow edema for characterization of incidental thoracolumbar compression fractures in routine thoracoabdominal staging computed tom...

journal_title：Investigative radiology

authors： Frellesen C,Azadegan M,Martin SS,Otani K,DʼAngelo T,Booz C,Eichler K,Panahi B,Kaup M,Bauer RW,Vogl TJ,Wichmann JL

更新日期：2018-07-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Bolus injection of iodinated contrast media has been observed to alter myocardial mechanical function, but the consequences on cellular metabolism are poorly documented. Modifications of metabolic parameters (intracellular pH as well as adenosine triphosphate [ATP], phosphocreatine, and inorgan...

journal_title：Investigative radiology

authors： Goossens A,Vander Elst L,Van Haverbeke Y,Muller RN

更新日期：1995-01-01 00:00:00

abstract：:Observation of the relaxivity of MRI contrast media over a wide range of magnetic fields is not only necessary for predicting their efficiency at any field but also compulsory for understanding and improving their mechanisms of action. The best experimental approach to this problem is the field cycling method, which a...

journal_title：Investigative radiology

authors： Muller RN,Vander Elst L,Rinck PA,Vallet P,Maton F,Fischer H,Roch A,Van Haverbeke Y

更新日期：1988-09-01 00:00:00

abstract：:The efficacy and safety of perfluoroctylbromide as a diagnostic contrast agent for direct lymphography was studied in mongrel dogs. This radiopaque perfluorocarbon has several advantages over Ethiodol. The liquid compound has injection times one-fifth of that required for Ethiodol. When dosages were three to four tim...

journal_title：Investigative radiology

authors： Liebner EJ

更新日期：1977-07-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To establish a pig model suitable for imitating pulmonary emboli to facilitate research in the diagnosis of pulmonary embolism. METHODS:Thirteen animals were anesthetized, mechanically ventilated, and subjected to pulmonary artery catheterization initiated from the right external jugular vein....

journal_title：Investigative radiology

authors： Amundsen T,Kvaerness J,Aadahl P,Waage A,Bjermer L,Odegård A,Haraldseth O

更新日期：2000-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Diabetic patients frequently suffer contrast media-induced nephropathy. Hyperglycemia in diabetes mellitus causes gradual deterioration of glomerular mesangial cells (MCs) in the kidney. In this study, the authors investigated the response of rat MCs cultured in high-glucose medium to diatrizoa...

journal_title：Investigative radiology

authors： Wasaki M,Sugimoto J,Shirota K

更新日期：2001-07-01 00:00:00

abstract：:The morphologic changes in healthy rat kidneys (n = 102) were studied 2 or 48 hours after intravenous injection of 1 or 3 g iodine (I)/kg of high-osmolality diatrizoate, low-osmolality iopromide and iohexol, or iso-osmolality iotrolan, as well as after 0.2 or 0.6 g/kg of the high-osmolality magnetic resonance contrast...

journal_title：Investigative radiology

authors： Tervahartiala P,Kivisaari L,Kivisaari R,Virtanen I,Standertskjöld-Nordenstam CG

更新日期：1991-10-01 00:00:00

abstract：:Recent publications of the magnetic resonance safety profile of neurostimulators, cardiac pacemakers, and other implanted devices imply that these devices are no longer a contraindication for magnetic resonance imaging. It is very promising that patients who have these implanted devices may in the future no longer be ...

journal_title：Investigative radiology

authors： Nitz WR,Brinker G,Diehl D,Frese G

更新日期：2005-12-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors differentiate breast lesions on sonography by measurements in two compression states that are perpendicular to each other. METHODS:Diameters of 100 breast lesions were measured preoperatively under lateromedial and craniocaudal compression with a new sonographic method. This method...

journal_title：Investigative radiology

authors： Richter K,Willrodt RG,Opri F,Heywang-Köbrunner SH

更新日期：1996-07-01 00:00:00

abstract：:Pyelovenous and pyelolymphatic backflow have been observed during retrograde pyelography in three patients with renal vein thrombosis. The radiographic patterns of backflow following experimental unilateral renal vein occlusion in rabbits were analyzed and correlated with the clinical findings. Capsular, perihilar, pe...

journal_title：Investigative radiology

authors： Bidgood WD Jr,Cuttino JT Jr,Clark RL,Volberg FM

更新日期：1981-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:This study evaluated the value of dynamically enhanced fast low-angle shot (FLASH) magnetic resonance (MR) imaging in measuring cardiac output with and without dipyridamole pharmacological stress. METHODS:Ten subjects underwent rest and stress MR imaging. Rest images were acquired using electr...

journal_title：Investigative radiology

authors： Tello R,Hartnell GG,Hill TC,Cerel A,Finn JP,Kamalesh M,Cohen M,Lewis S

更新日期：1996-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Magnetic resonance microscopy (MRM) has evolved from a technical curiosity to a tool with which researchers can study important disease models. But MRM is not simply an extension of clinical magnetic resonance imaging. In this article, the unique adaptations of MRM required in the study of caro...

journal_title：Investigative radiology

authors： Arnder L,Zhou X,Cofer GP,Hedlund LW,Johnson GA

更新日期：1994-09-01 00:00:00

abstract：:Previous work has shown that Fe3+, when administered in the proper dose and time sequence, increases the tumor uptake of gallium-67 (67Ga) while decreasing its uptake by normal tissues. The purpose of this series of experiments was to examine further the postulate that the false carrier effect is mediated at the cellu...

journal_title：Investigative radiology

authors： Stern PH,Halpern SE,Hagan PL,Chen A

更新日期：1982-07-01 00:00:00

abstract：:Ionic (diatrizoate, ioxaglate) and nonionic (iohexol, iosimide, iopromide, and iotrolan) contrast media (CM) were evaluated for their cytogenetic effects in lymphocytes. Heparinized blood was mixed with culture medium RPMI-1640 supplemented with phytohemagglutinin, fetal calf serum, and antibiotics. Plastic tubes cont...

journal_title：Investigative radiology

authors： Parvez Z,Kormano M,Moncada R,Eklund R

更新日期：1986-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors investigated whether gadolinium-ethoxybenzyl-DTPA (Gd-EOB-DTPA) can be eliminated in the absence of the two usual excretory pathways (urinary or biliary) and whether a remaining excretory pathway is able to compensate for impaired liver or kidney function. METHODS:The study was per...

journal_title：Investigative radiology

authors： Mühler A,Heinzelmann I,Weinmann HJ

更新日期：1994-02-01 00:00:00

abstract：:Computed tomography followed by sectional radiography and photography as performed on eight cadaveric specimens in order to define the anatomy and normal motion of both the proximal and the distal radioulnar articulations. Osseous landmarks were defined that allowed measurement of rotation at the glenohumeral, proxima...

journal_title：Investigative radiology

authors： Cone RO,Szabo R,Resnick D,Gelberman R,Taleisnik J,Gilula LA

更新日期：1983-11-01 00:00:00

abstract：:Even though we have made much progress over the last decade, much still needs to be done. I am personally very pleased with the excellent management and authority of my coauthor, Joe Frank, in assuming the Acting Directorship of our DRRP. You will be hearing more from him in the immediate future about this research pr...

journal_title：Investigative radiology

authors： Putman CE,Frank JA

更新日期：1993-04-01 00:00:00

abstract：:Thirty patients [four normals, eight with mild and 18 with severe coronary artery disease (CAD)] were studied to evaluate left ventricular function type and post coronary angiography. The end diastolic volume (EDV), end systolic volume (ESV), ejection fraction (EF) and the regional contractility fractions (RCF) of eig...

journal_title：Investigative radiology

authors： Sos TA,Baltaxe HA

更新日期：1976-03-01 00:00:00

abstract：:The results of an in vitro mixed hemadsorption (MHA) assay predicted the success of in vivo tumor localization using a radioiodinated, monoclonal, IgG1 antibody (A2) with reactivity to the human bladder carcinoma cell line RT4. In vitro, murine monoclonal antibodies A2 and G6, demonstrated reactivity to RT4 with titer...

journal_title：Investigative radiology

authors： Gross MD,Skinner RW,Grossman HB

更新日期：1984-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Low-field magnetic resonance imaging (MRI) evaluation of breast implants is described, with emphasis on the capabilities provided by different imaging sequences. METHODS:Open architecture MR images using a .064-T permanent magnet and three-dimensional Fourier transform and inversion recovery s...

journal_title：Investigative radiology

authors： Frankel S,Occhipinti K,Kaufman L,Kramer D,Carlson J,Mineyev M,Friedenthal R

更新日期：1994-08-01 00:00:00

abstract：:The cytogenetic interactions of ionic (diatrizoate, ioxaglate) and nonionic (iohexol) contrast media (CM) with antineoplastic drugs cyclophosphamide (CPA) and carmustine (CARM) were evaluated in a rat bone marrow cell model. Male Wistar rats were anesthetized with a 6% chloral hydrate solution and divided into five gr...

journal_title：Investigative radiology

authors： Parvez Z,Moncada R,Gragasin M

更新日期：1988-05-01 00:00:00

abstract：PURPOSE:To prove the concept of peripheral continuous table movement (CTM) MR-angiography (MRA) in combination with high spatial and temporal resolution time-resolved TWIST-MRA in a single MR-examination at 3.0 T with a single dose (0.1 mmol/kg) of gadobutrol in total. MATERIALS AND METHODS:We included 22 consecutive ...

journal_title：Investigative radiology

authors： Voth M,Haneder S,Huck K,Gutfleisch A,Schönberg SO,Michaely HJ

更新日期：2009-09-01 00:00:00

abstract：:Early detection of pancreatic ductal adenocarcinoma (PDAC) represents the most significant step toward the treatment of this aggressive lethal disease. Previously, we engineered a preclinical Thy1-targeted microbubble (MBThy1) contrast agent that specifically recognizes Thy1 antigen overexpressed in the vasculature of...

journal_title：Investigative radiology

authors： Bam R,Daryaei I,Abou-Elkacem L,Vilches-Moure JG,Meuillet EJ,Lutz A,Marinelli ER,Unger EC,Gambhir SS,Paulmurugan R

更新日期：2020-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors assessed whether a non-sleep-deprived, second-year diagnostic radiology resident assigned to an after-hours "night stalker" emergency radiology (ER) rotation in an urban university hospital has a measurable impact on the number and clinical significance of "missed" radiologic findin...

journal_title：Investigative radiology

authors： Mann FA,Danz PL

更新日期：1993-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Density of trabecular bone structures in human heel bones was assessed by 3D magnetic resonance (MR) gradient echo imaging (GEI) with multiple echoes. Different spatial resolutions were applied to investigate the influence of the pixel size on signal characteristics in GEI and to find suitable ...

journal_title：Investigative radiology

authors： Machann J,Schnatterbeck P,Raible A,Lutz O,Claussen CD,Schick F

更新日期：2000-07-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors determine the relative effect of soft-tissue compartments, body fat (percent [%Bfat] and weight [Bfat kg]) and fat-free mass (FFM kg), on measurements of ultrasound bone velocity (UBV m/second). METHODS:The authors measured UBV in proximal phalanxes and body fat and fat-free mass b...

journal_title：Investigative radiology

authors： Gómez M,Aguado F,Manuel J,Menéndez JM,Revilla M,Villa LF,Cortés J,Rico H

更新日期：1997-10-01 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

authors： Fink C,Ley S,Risse F,Eichinger M,Zaporozhan J,Buhmann R,Puderbach M,Plathow C,Kauczor HU

更新日期：2005-02-01 00:00:00

abstract：OBJECTIVE:To compare image quality and geometric distortion between readout-segmented diffusion-weighted imaging (rs-DWI) and selective-excitation accelerated reduced-field of view (FOV) DWI (sTX-DWI) of the prostate. MATERIALS AND METHODS:Sixty-five patients underwent 3-T MRI of the prostate including rs-DWI and sTX-...

journal_title：Investigative radiology

authors： Barth BK,Cornelius A,Nanz D,Eberli D,Donati OF

更新日期：2015-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Ureteric jet index (UJI), a newly developed technique derived from color Doppler ultrasonography, may hold promise in evaluating renal function because of its ability to evaluate individual renal function and the use of nonionizing radiation. To assess the usefulness of UJI, the authors in this...

journal_title：Investigative radiology

authors： Chiu NT,Wu CC,Yao WJ,Tu DG,Lee BF,Tong YC,Pan CC

更新日期：1999-08-01 00:00:00

abstract：:The interdisciplinary approach to medical education has often been deficient in medical school curricula. Because of the nonintegrated approach to medical education, problem solving capabilities are not fostered. The clinical presentation of a patient, the imaging modalities used to investigate the patient, and the ul...

journal_title：Investigative radiology

authors： Oldham SA,Jacobson F

更新日期：1986-04-01 00:00:00