Systemic absorption of gallbladder sclerosing agents in the rabbit. A preliminary study.

abstract：:The problem of inhomogeneous mixing encountered during hepatic artery (HA) chemotherapy infusion was assessed and a practical solution examined. A glass model of the human HA distribution was used to determine mixing homogeneity of low flow (1.4 mL/minute) dye infusion into pulsatile flow (280-300 mL/minute) of a flui...

journal_title：Investigative radiology

authors： Barth KH,Lutz RJ,Kremers PW,Miller DL

更新日期：1988-07-01 00:00:00

abstract：:Radiation dose in computed tomography (CT) has become a hot topic due to an upward trend in the number of CT procedures worldwide and the relatively high doses associated with these procedures. The main aim of this review article is to provide an overview of the most frequently used metrics for CT radiation dose chara...

journal_title：Investigative radiology

authors： Damilakis J

更新日期：2021-01-01 00:00:00

abstract：:We developed a new, cineangiographic method to accurately measure the dynamic changes in the internal diameter of human arteries in vivo. Cine films were digitized at a spatial resolution of 4 microns/pixel, using a line image sensor. The vessel edges, with a Gaussian fit to a unilateral profile curve of the vessel, w...

journal_title：Investigative radiology

authors： Sugahara T,Yanagihara Y,Uyama C,Maeda H,Takafuchi M,Azumi T

更新日期：1989-09-01 00:00:00

abstract：OBJECTIVE:: The final event leading to myocardial infarction is adhesion and activation of platelets after rupture of an atherosclerotic plaque, ending in thrombotic occlusion of the coronary artery. Imaging of imminent vessel occlusion may improve patient care. The feasibility of molecular magnetic resonance imaging (...

journal_title：Investigative radiology

authors： Duerschmied D,Meißner M,Peter K,Neudorfer I,Roming F,Zirlik A,Bode C,von Elverfeldt D,von Zur Muhlen C

更新日期：2011-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To investigate image mottle in conventional CT images of the abdomen as a function of radiographic technique factors and patient size. METHODS:Water-filled phantoms simulating the abdomens of adult (32 cm in diameter) and pediatric (16 cm in diameter) patients were used to investigate image mo...

journal_title：Investigative radiology

authors： Ende JF,Huda W,Ros PR,Litwiller AL

更新日期：1999-04-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Hepatocellular carcinomas (HCCs) usually consist of components of different histologic grade. Using surgically resected specimens, the authors obtained high-resolution magnetic resonance (MR) images and studied the relationship between histologic grade of HCCs and MR signal intensity. METHOD:I...

journal_title：Investigative radiology

authors： Inoue E,Kuroda C,Narumi Y,Fujita M,Kadota T,Kuriyama K,Yoshioka H,Ishiguro S,Sasaki Y,Imaoka S

更新日期：1993-08-01 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：:Prior studies of the opacification-phase effects of left ventricular (LV) injection of angiographic contrast medium (CM) on LV size and function have yielded discrepant results. A sensitive ultrasonic technique was used to measure LV dimension (Di) in 10 open-chest dogs with physiologic heart rates, and injection of s...

journal_title：Investigative radiology

authors： LeWinter MM,Pavelec RS

更新日期：1982-09-01 00:00:00

abstract：OBJECTIVES:Transcatheter arterial embolization (TAE) is used for the treatment of patients with malignant liver tumors. However, the proangiogenesis effect of TAE-associated hypoxia has not been adequately studied. The goal of this study was to determine angiogenic activity in tumors subjected to TAE by evaluating the ...

journal_title：Investigative radiology

authors： Gupta S,Kobayashi S,Phongkitkarun S,Broemeling LD,Kan Z

更新日期：2006-06-01 00:00:00

abstract：:Fractures modeled in the dried skull indicate that the initial plane of computed tomography (CT) section contributes to the accuracy of three-dimensional (3D) images generated from two-dimensional (2D) CT data. The authors retrospectively analyzed seven clinical cases of tripod zygomatic fractures that were imaged wit...

journal_title：Investigative radiology

authors： Levy RA,Kellman RM,Rosenbaum AE

更新日期：1991-05-01 00:00:00

abstract：:"Satisfaction of search" (SOS) refers to the effect in which a second lesion remains undetected after detection of another lesion on the same radiograph. The objective of this study was to clarify our understanding of SOS by relating it to total time of inspection and time intervals before, between, and after discover...

journal_title：Investigative radiology

authors： Berbaum KS,Franken EA Jr,Dorfman DD,Rooholamini SA,Coffman CE,Cornell SH,Cragg AH,Galvin JR,Honda H,Kao SC

更新日期：1991-07-01 00:00:00

abstract：INTRODUCTION:The aim of the present study was to evaluate the potential of high-resolution MRI at 2 Tesla (T) for direct noninvasive imaging of the aortic wall in a mouse model of atherosclerosis. MATERIAL AND METHODS:A specific mouse antenna was developed and sequence parameters were adjusted. T(1)- and T2-weighted i...

journal_title：Investigative radiology

authors： Chaabane L,Soulas EC,Contard F,Salah A,Guerrier D,Briguet A,Douek P

更新日期：2003-08-01 00:00:00

abstract：PURPOSE:The aim of this study was to evaluate the feasibility of a prototype volume-interpolated breath-hold examination (VIBE) sequence using compressed sensing (VIBECS) for rapid multiphase arterial magnetic resonance imaging (MRI) at different temporal resolution during free-breathing in comparison with a convention...

journal_title：Investigative radiology

authors： Weiss J,Notohamiprodjo M,Taron J,Martirosian P,Nickel D,Bamberg F,Nikolaou K,Othman AE

更新日期：2018-10-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to compare F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/magnetic resonance (MR) (with and without diffusion-weighted imaging [DWI]) to F-FDG PET/computed tomography (CT), with regard to the assessment of nodal and extranodal involvement, in patients with Hodgkin lym...

journal_title：Investigative radiology

authors： Giraudo C,Raderer M,Karanikas G,Weber M,Kiesewetter B,Dolak W,Simonitsch-Klupp I,Mayerhoefer ME

更新日期：2016-03-01 00:00:00

abstract：OBJECTIVES:Over the recent years, there have been increasing concerns that exposure to gadolinium-based contrast agents (GBCAs) may be associated with retention of Gd within the skin, bones, and solid organs in patients with normal renal function, although the clinical implications of this deposition remain to be estab...

journal_title：Investigative radiology

authors： Layne KA,Wood DM,Dixon-Zegeye M,Archer JRH,Raja K,Dargan PI

更新日期：2020-07-01 00:00:00

abstract：PURPOSE:To determine whether liver metastases conspicuity is improved at 80 kVp when compared with weighted average (WA) simulated 120 kVp data using dual source dual energy CT. METHODS:A total of 11 patients with 44 hypo-vascular liver metastases underwent contrast enhanced Dual Energy CT (DECT). In all cases the sub...

journal_title：Investigative radiology

authors： Robinson E,Babb J,Chandarana H,Macari M

更新日期：2010-07-01 00:00:00

abstract：:Various water soluble contrast media (WSCM) were injected subcutaneously into 970 hind feet of 485 rats. Gross morphologic changes were seen after the injection and analyzed as a function of various physicochemical characteristics of WSCM. The WSCM of larger volume, higher osmolality, higher iodine content, and meglum...

journal_title：Investigative radiology

authors： Kim SH,Park JH,Kim YI,Kim CW,Han MC

更新日期：1990-06-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to perform phantom measurements to prove the feasibility of single-source dual-energy computed tomography (DECT) of the extremities using a volume scan mode. In addition, we, for the first time, wanted to determine which concentrations of monosodium urate (MSU) in gout and calcium p...

journal_title：Investigative radiology

authors： Diekhoff T,Kiefer T,Stroux A,Pilhofer I,Juran R,Mews J,Blobel J,Tsuyuki M,Ackermann B,Hamm B,Hermann KG

更新日期：2015-04-01 00:00:00

abstract：PURPOSE:To evaluate the feasibility of ex vivo ablation implementing a cryo-based internally cooled bipolar radiofrequency (RF) applicator and to determine the influence of power and gas pressure on the size and shape of the resulting ablation zones. MATERIALS AND METHODS:Two hundred twenty-five ablations were perform...

journal_title：Investigative radiology

authors： Rempp H,Voigtländer M,Clasen S,Kempf S,Neugebauer A,Schraml C,Schmidt D,Claussen CD,Enderle MD,Goldberg SN,Pereira PL

更新日期：2009-12-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:This study assesses the ability of a cardiac-gated phase-contrast magnetic resonance imaging (MRI) technique to measure renal blood flow (RBF) noninvasively in humans. METHODS:In nine normal volunteers, total RBF in the renal arteries and in the left renal vein was estimated by MRI and correla...

journal_title：Investigative radiology

authors： Sommer G,Noorbehesht B,Pelc N,Jamison R,Pinevich AJ,Newton L,Myers B

更新日期：1992-06-01 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

authors： Wintersperger BJ,Runge VM,Tweedle MF,Jackson CB,Reiser MF

更新日期：2009-02-01 00:00:00

abstract：PURPOSE:Magnetic Resonance Imaging (MRI) has become the method of choice in the evaluation of patients with suspected cervical artery dissection (CAD). However, reliable identification of acute CAD might be impaired by the limited spatial resolution of standard 1.5 T MRI. In this preliminary study, we implemented a mul...

journal_title：Investigative radiology

authors： Bachmann R,Nassenstein I,Kooijman H,Dittrich R,Kugel H,Niederstadt T,Kuhlenbäumer G,Ringelstein EB,Krämer S,Heindel W

更新日期：2006-02-01 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：OBJECTIVE:BR55, a vascular endothelial growth factor receptor 2 (VEGFR2)-specific ultrasound molecular contrast agent (MCA), has shown promising results in multiple preclinical models regarding cancer imaging. In this first-in-human, phase 0, exploratory study, we investigated the feasibility and safety of the MCA for ...

journal_title：Investigative radiology

authors： Smeenge M,Tranquart F,Mannaerts CK,de Reijke TM,van de Vijver MJ,Laguna MP,Pochon S,de la Rosette JJMCH,Wijkstra H

更新日期：2017-07-01 00:00:00

abstract：OBJECTIVES:The goal of this study was to demonstrate feasibility of measuring extracellular pH in cartilage and meniscus using acidoCEST technique with a 3-dimensional ultrashort echo time readout (acidoCEST-UTE) magnetic resonance imaging (MRI). MATERIALS AND METHODS:Magnetization transfer ratio asymmetry, radiofrequ...

journal_title：Investigative radiology

authors： Ma YJ,High RA,Tang Q,Wan L,Jerban S,Du J,Chang EY

更新日期：2019-09-01 00:00:00

abstract：:The rate at which isotopes descend from the cisterna magna to the lumbar subarachnoid space is highly variable. In monkeys, with and without previous lumbar puncture, transit time was measured. In animals with a previous lumbar puncture, transit times were 10 to 120 minutes; in monkeys without a previous lumbar punctu...

journal_title：Investigative radiology

authors： Lipman B,Palmer D,Noble J,Haughton V,Collier D

更新日期：1988-05-01 00:00:00

abstract：:This article reviews the computer system hardware and software, applications programs, and computer network services that are available on microcomputers for use by the radiologist. The American College of Radiology Institute computer network is described, which is specifically designed to help the practicing radiolog...

journal_title：Investigative radiology

authors： Newell JD,Hunter TB

更新日期：1986-02-01 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

authors： Wilson MW,Webb RC,Marx MV,Meyer CR,Gallagher MA,Haarer SL,Buda AJ,Williams DM

更新日期：1991-03-01 00:00:00

abstract：OBJECTIVE:To investigate the correlation between intravoxel incoherent motion (IVIM) model-derived parameters and histologically determined microvascularity in pancreatic ductal adenocarcinomas (PDACs) and pancreatic neuroendocrine tumors (PNETs). MATERIALS AND METHODS:From April 2013 to May 2014, 42 patients with mal...

journal_title：Investigative radiology

authors： Klau M,Mayer P,Bergmann F,Maier-Hein K,Hase J,Hackert T,Kauczor HU,Grenacher L,Stieltjes B

更新日期：2015-11-01 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

authors： Zhou W,Bartlett DJ,Diehn FE,Glazebrook KN,Kotsenas AL,Carter RE,Fletcher JG,McCollough CH,Leng S

更新日期：2019-04-01 00:00:00