Clinical experience with saralasin infusion in hypertensive patients.

abstract：RATIONALE AND OBJECTIVES:The efficacy of gadoteridol for contrast enhancement of central nervous system pathology was assessed in a multicenter clinical trial involving 411 patients suspected of having intracranial or spinal pathology. METHODS:Magnetic resonance imaging was performed before and after intravenous admin...

journal_title：Investigative radiology

authors： Runge VM,Bronen RA,Davis KR

更新日期：1992-08-01 00:00:00

abstract：:Erythrocytes at various concentrations were examined with a sensitive A-mode ultrasonic scanner; simultaneous measurements were made under light microscopic control. Individual erythrocytes caused weak (about 1 dB) echoes while erythrocyte aggregates (ten to 100 cells) produced stronger echoes (up to 15 dB), grossly p...

journal_title：Investigative radiology

authors： Alanen A,Kormano M

更新日期：1985-08-01 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

authors： Akashi Y,Koreeda C,Mizuno T,Inoue K,Kawa SK,Tanaka Y

更新日期：1993-02-01 00:00:00

abstract：:Compounds containing mobile protons can act as contrast agents by increasing the value of the term (1/12 - 1/11). The efficiency of this method is markedly pH- and field-dependent. There are many such compounds allowing a choice to be made based on the characteristics of the tissue or organ, magnetic field strength, a...

journal_title：Investigative radiology

authors： Aime S,Nano R,Grandi M

更新日期：1988-09-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The capability of an indirect computed tomographic lymphography (CT-LG) using a nonionic monometric contrast medium iopamidol for visualizing breast lymphatic pathways was preliminarily tested. MATERIALS AND METHODS:In 10 female dogs, a total of 0.5 and 1 mL of undiluted iopamidol was injected...

journal_title：Investigative radiology

authors： Suga K,Ogasawara N,Yuan Y,Okada M,Matsunaga N,Tangoku A

更新日期：2003-02-01 00:00:00

abstract：:Patients with intracranial arteriovenous malformations (AVM) can expect significant mortality (15% to 20%) and morbidity (20% to 30%) over a 15-year to 20-year period. Recent advances in interventional neuroradiology, neurosurgery, neuroanesthesia, and stereotactic radiotherapy provide the opportunity to obliterate ma...

journal_title：Investigative radiology

authors： Graves VB,Duff TA

更新日期：1990-08-01 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：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

authors： Casali C,Obadia JF,Canet E,Bendjelid K,André-Fouët X,Revel D,Janier MF

更新日期：1997-11-01 00:00:00

abstract：:The potential of magnetic resonance imaging (MRI) quantification of calcium for the evaluation of pulmonary nodules was investigated in simulated nodules. Calcium salts do not contain mobile protons and thus have no signal on MR proton images. To determine whether the absence of signal from partially calcified nodules...

journal_title：Investigative radiology

authors： Gamsu G,de Geer G,Cann C,Müller N,Brito A

更新日期：1987-11-01 00:00:00

abstract：OBJECTIVE:We sought to evaluate the influence of tube voltage on the visualization of acute myocardial infarction (MI) in cardiac multislice spiral computed tomography (MSCT). MATERIALS AND METHODS:Acute MI was induced in 12 domestic pigs by a 45-minute balloon occlusion of the left anterior descending artery. Delayed...

journal_title：Investigative radiology

authors： Mahnken AH,Bruners P,Mühlenbruch G,Emmerich M,Hohl C,Günther RW,Wildberger JE

更新日期：2007-02-01 00:00:00

abstract：OBJECTIVE:To determine the prevalence of nephrogenic systemic fibrosis (NSF) in patients with chronic kidney disease (CKD) who have received gadopentetate dimeglumine. MATERIALS AND METHODS:We retrospectively studied all patients who underwent contrast-enhanced magnetic resonance imagings (CE-MRIs) between January 1, ...

journal_title：Investigative radiology

authors： Hope TA,Herfkens RJ,Denianke KS,LeBoit PE,Hung YY,Weil E

更新日期：2009-03-01 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：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

authors： Pysz MA,Foygel K,Panje CM,Needles A,Tian L,Willmann JK

更新日期：2011-03-01 00:00:00

abstract：:Diagnostic radiology is expanding, playing an increasingly central role in patient care, which heightens the importance of radiology teaching in undergraduate medical education. This study examined the impact of increased structure and systematic evaluation on student performance in a radiology elective. The evaluatio...

journal_title：Investigative radiology

authors： Blane CE,Calhoun JG,Maxim BR,Martel W,Davis WK

更新日期：1985-05-01 00:00:00

abstract：:A 144cerium-induced osteosarcoma was transplanted to athymic nude rats (Han:rnu/rnu). Nineteen of the tumor-bearing animals were used to demonstrate the characteristics of the osteosarcoma on magnetic resonance imaging (MRI) in comparison with a group of nine animals that had not received any tumor transplant. The tum...

journal_title：Investigative radiology

authors： Witzel JG,Bohndorf K,Prescher A,Adam G

更新日期：1992-03-01 00:00:00

abstract：:The importance of evaluating medical student performance has been widely addressed in the medical education literature. Multiple-choice examinations are the preferred method of testing because they are easy to administer and score. Development of parallel or equivalent pre- and post-examinations provides objective inf...

journal_title：Investigative radiology

authors： Blane CE,Calhoun JG,Vydareny KH

更新日期：1986-09-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to conduct a radiopathologic evaluation of right-angled traction bronchiectasis to differentiate idiopathic pulmonary fibrosis (IPF) without honeycombing from idiopathic nonspecific interstitial pneumonia (NSIP). MATERIALS AND METHODS:The derivation cohort included 78 consecutive p...

journal_title：Investigative radiology

authors： Kim H,Yoon SH,Lee HJ,Song SG,Koh J,Jeon YK,Chae KJ,Jin GY,Jin KN,Lee KY,Goo JM

更新日期：2020-06-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Because of the complex relationships between the dynamic three-dimensional cardiac surface shape and its projected image, errors arise with the use of two-dimensional silhouettes to measure displacements of the heart. The character and frequency of such errors are examined. METHODS:A high-prec...

journal_title：Investigative radiology

authors： McInerney JJ,Weldner PW,Herr MD,Copenhaver GL

更新日期：1994-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:This study sought to evaluate prospectively the diagnostic potential of unenhanced and enhanced color Doppler and power Doppler for the differentiation of tumors and tumorlike lesions of the breast. METHODS:Ninety-two patients with 110 tumors or tumorlike lesions of the breast were investigate...

journal_title：Investigative radiology

authors： Schroeder RJ,Maeurer J,Vogl TJ,Hidajat N,Hadijuana J,Venz S,Weber S,Felix R

更新日期：1999-02-01 00:00:00

abstract：:A prospective, randomized study of the potential protective effects of corticosteroids administered as pretreatment against contrast material (CM) reactions is reported. Patients (n = 6,763) from multiple institutions received either a single dose of steroids (32 mg of oral methylprednisolone, approximately 2 hours be...

journal_title：Investigative radiology

authors： Lasser EC,Berry CC,Talner LB,Santini LC,Lang EK,Gerber FH,Stolberg HO

更新日期：1988-09-01 00:00:00

abstract：:The contrast sensitivity of the retina is greatest in the center and decreases rapidly toward the periphery. Therefore, the detection of low-contrast lung nodules depends upon the manner in which the image is sampled by retinal receptors as eye fixations jump across the image during scanning. The scanning performance ...

journal_title：Investigative radiology

authors： Kundel HL,Nodine CF,Thickman D,Toto L

更新日期：1987-05-01 00:00:00

abstract：:We studied 60 male patients who had concurrent chest films (CXR), computed tomography scans (CT) and pulmonary function tests (PFT) to assess the sensitivity of CT and conventional films in detecting emphysema compared with PFT. We also sought to determine whether emphysema could be diagnosed by CT in patients with no...

journal_title：Investigative radiology

authors： Sanders C,Nath PH,Bailey WC

更新日期：1988-04-01 00:00:00

abstract：RATIONAL AND OBJECTIVES:The feasibility of tubal occlusion by selective salpingography was tested in an animal model; three novel occluding materials also were tested for this application. METHODS:Unilateral selective salpingography was performed in three groups of six rabbits; fallopian tubes were embolized with etha...

journal_title：Investigative radiology

authors： Maubon A,Rouanet JP,Laurent A,Joujoux JM,Cover S,Courtieu C,Wassef M,Godlewski G,Honiger J,Lopez FM

更新日期：1994-02-01 00:00:00

abstract：OBJECTIVES:In late December 2019, an outbreak of coronavirus disease (COVID-19) in Wuhan, China was caused by a novel coronavirus, newly named severe acute respiratory syndrome coronavirus 2. We aimed to quantify the severity of COVID-19 infection on high-resolution chest computed tomography (CT) and to determine its r...

journal_title：Investigative radiology

authors： Xiong Y,Sun D,Liu Y,Fan Y,Zhao L,Li X,Zhu W

更新日期：2020-06-01 00:00:00

abstract：:Magnetic resonance angiography (MRA) for application in the musculoskeletal system is progressing at a rapid pace. The clinical role of this new technique is still being developed, although a number of uses have already become well recognized, and MRA is diffusing into clinical practice. This article describes the bas...

journal_title：Investigative radiology

authors： Harms SE,Flamig DP

更新日期：1992-12-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to validate quantitation of R2* and DeltaR2* measurements obtained with a 3-dimensional (3-D) multiple gradient-recalled echo (mGRE) sequence for evaluating intrarenal oxygenation in humans. MATERIALS AND METHODS:Validation was accomplished (1) by comparing R2* values with pre...

journal_title：Investigative radiology

authors： Tumkur S,Vu A,Li L,Prasad PV

更新日期：2006-02-01 00:00:00

abstract：OBJECTIVES:Altered systolic blood flow in the ascending aorta has been correlated with increased aortic growth in patients with bicuspid aortic valves (BAVs). We used conventional, 2-dimensional (2D) phase contrast magnetic resonance imaging (PC-MRI) to assess the relationship between altered flow and future growth in ...

journal_title：Investigative radiology

authors： Burris NS,Sigovan M,Knauer HA,Tseng EE,Saloner D,Hope MD

更新日期：2014-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To compare trabecular bone structure measures obtained in magnetic resonance images of the distal radius and the calcaneus as well as computed tomographic images of the spine versus bone mineral density (BMD) of the spine and the calcaneus in the prediction of osteoporotic spine fracture status...

journal_title：Investigative radiology

authors： Link TM,Bauer J,Kollstedt A,Stumpf I,Hudelmaier M,Settles M,Majumdar S,Lochmüller EM,Eckstein F

更新日期：2004-08-01 00:00:00

abstract：:An isotopic radiation source 125I was investigated for use in soft tissue radiaography, with particular attention to possible use in mammography for mass screening. Film sensitivities, exposure rates, absorbed doeses, contrast and resolution were determined, and compared to conventional x-ray units. It was found that ...

journal_title：Investigative radiology

authors： Fairchild R,Atkins HL,Lebowitz E,Greenberg D

更新日期：1975-09-01 00:00:00

abstract：:Multiple intravenous injections of contrast media are used in radiology, but information regarding corresponding changes in the serum iodine concentrations and osmolality is lacking. We measured the changes in serum iodine concentration and serum osmolality in rabbits after a series of intravenous injections of contra...

journal_title：Investigative radiology

authors： Rubin DI,Kido DK,Morris TW,Fischer HW

更新日期：1987-03-01 00:00:00