Binary nature and radiographic identifiability of craniosynostosis.

abstract：RATIONALE AND OBJECTIVES:Tissue contrast phenomenology was investigated analytically and clinically for a class of magnetic resonance (MR) pulse sequences we call large-tip-angle (LTA) spin-echo (SE) imaging. In comparison to traditional SE sequences (denoted 90 degrees-180 degrees-echo), the LTA sequence is of the for...

journal_title：Investigative radiology

authors： Elster AD,Provost TJ

更新日期：1993-10-01 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：: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：RATIONALE AND OBJECTIVES:To investigate the capacity of manganese dipyridoxyl diphosphate (MnDPDP)-enhanced magnetic resonance imaging (MRI) to discriminate the injured myocardium from the normal myocardium in a cat model. MATERIALS AND METHODS:Fourteen cats were prepared for acute myocardial infarction with 90-minute...

journal_title：Investigative radiology

authors： Kim TH,Yang DH,Choi JW,Kim ST,Yoon JH,Shin JH,Seo JB,Gong GY,Lim TH

更新日期：2005-01-01 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：: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：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：OBJECTIVE:Commercially available iodinated contrast media (CM) show significantly different physico-chemical properties. The relevance of the viscosity of CM may be underestimated as a contributing factor for clinically relevant renal failure as suggested by a large registry data analysis (Swedish registry study). The ...

journal_title：Investigative radiology

authors： Jost G,Pietsch H,Sommer J,Sandner P,Lengsfeld P,Seidensticker P,Lehr S,Hütter J,Sieber MA

更新日期：2009-02-01 00:00:00

abstract：PURPOSE:To determine whether time-resolved magnetic resonance angiography (TR-MRA) with ultra-low-dose gadolinium chelate (1.5-3.0 mL) can reliably detect or rule out hemodynamically significant disease in the carotid-vertebral artery territory. MATERIALS AND METHODS:Hundred consecutive patients (62 women, 38 men, mea...

journal_title：Investigative radiology

authors： Lohan DG,Tomasian A,Saleh RS,Singhal A,Krishnam MS,Finn JP

更新日期：2009-04-01 00:00:00

abstract：:Gelatin encapsulated nitrogen microbubbles were effective ultrasonic contrast agents in in vitro phantom and in vivo rabbit V2 carcinoma studies. Intra-arterial injection of 80-micrometer gelatin encapsulated nitrogen microbubbles appeared to improve tumor visualization by rim enhancement, which persisted for several ...

journal_title：Investigative radiology

authors： Carroll BA,Turner RJ,Tickner EG,Boyle DB,Young SW

更新日期：1980-05-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to explore the impact of dynamic contrast-enhanced (DCE) computer tomography (CT) as a biomarker in metastatic renal cell carcinoma (mRCC). MATERIALS AND METHODS:Twelve patients with favorable or intermediate Memorial Sloan Kettering Cancer Center risk group and clear cell mRCC par...

journal_title：Investigative radiology

authors： Mains JR,Donskov F,Pedersen EM,Madsen HH,Rasmussen F

更新日期：2014-09-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to assess the effect of age and number of previous injections of gadodiamide on the signal intensity of unenhanced T1-weighted (T1w) images of the dentate nucleus and globus pallidus in a large population. MATERIALS AND METHODS:A large, single-center retrospective population sur...

journal_title：Investigative radiology

authors： Quattrocchi CC,Errante Y,Mallio CA,Marinelli L,LoVullo G,Giannotti G,Della Sala SW,van der Molen AJ,Beomonte Zobel B

更新日期：2018-04-01 00:00:00

abstract：PURPOSE:The aim of this study was to identify the signal intensity (SI) changes in the dentate nucleus (DN) and the globus pallidus (GP) on unenhanced T1-weighted magnetic resonance (MR) images after multiple administration of gadolinium-based contrast agents (GBCAs) in children and compare those changes between linear...

journal_title：Investigative radiology

authors： Ryu YJ,Choi YH,Cheon JE,Lee WJ,Park S,Park JE,Kim WS,Kim IO

更新日期：2018-04-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To determine whether vascular endothelial growth factor (VEGF) is a histopathological factor influencing contrast enhancement of hepatocellular carcinoma (HCC) on computed tomography (CT). METHODS:Twenty-two nodular HCCs underwent multiphase helical CT and surgery. Tumor size, histological gra...

journal_title：Investigative radiology

authors： Kwak BK,Shim HJ,Park ES,Kim SA,Choi D,Lim HK,Park CK,Chung JW,Park JH

更新日期：2001-08-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To compare the diagnostic efficacy of a standard dose of MRI contrast agent in the evaluation of primary brain tumors and metastases using a high-field 3 tesla MR unit versus a 1.5 tesla MR unit. METHODS:Sixteen patients with brain tumors were examined at both field strengths using identical a...

journal_title：Investigative radiology

authors： Nöbauer-Huhmann IM,Ba-Ssalamah A,Mlynarik V,Barth M,Schöggl A,Heimberger K,Matula C,Fog A,Kaider A,Trattnig S

更新日期：2002-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The effect of varying exposure parameters on the detectability of a fracture with digital and conventional radiography were examined. METHODS:A macerated fractured skull was imaged by film-screen radiography (FSR) and digital storage phosphor radiography (DR) with various exposure values. Five...

journal_title：Investigative radiology

authors： Langen HJ,Klein HM,Wein B,Schiwy-Bochat KH,Stargardt A,Günther RW

更新日期：1993-03-01 00:00:00

abstract：:A radiographic method for use in the closed-chest dog is described which allows the quantitation of segmental mechanical performance. Previous work has shown that the area of the pressure-length loop (an approximation of a stress-strain integral) is a useful measure of the mechanical work performed by a segment of myo...

journal_title：Investigative radiology

authors： Ringertz HG,Carlsson E,Tyberg JV

更新日期：1976-11-01 00:00:00

abstract：OBJECTIVES:The objective of this study was to prospectively compare diagnostic performance and time efficiency of a double-reading paradigm in which a first-reader computer-aided detection (CAD) is followed by a fast 2-dimensional review (DR FR-CAD) with those of a double reading with second-reader CAD (SR CAD). MATER...

journal_title：Investigative radiology

authors： Iussich G,Correale L,Senore C,Hassan C,Segnan N,Campanella D,Bert A,Galatola G,Laudi C,Regge D

更新日期：2014-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Tools for monitoring modern target-specific antiangiogenic and antivascular therapies are highly desirable because treatment strategies are time consuming, expensive, and yet sometimes ineffective. Therefore, the aim of this experimental study was to evaluate the predictive value of steady-stat...

journal_title：Investigative radiology

authors： Persigehl T,Matuszewski L,Kessler T,Wall A,Meier N,Ebert W,Berdel WE,Heindel W,Mesters R,Bremer C

更新日期：2007-12-01 00:00:00

abstract：:Breast calcification diagnosis was studied by using clinical findings and computerized image processing of a mammogram in a network of trained expert learning systems (Outcome Advisor [OA]). The system was tested with records not used for training and performance was compared with radiologist. The network was 72% accu...

journal_title：Investigative radiology

authors： Patrick EA,Moskowitz M,Mansukhani VT,Gruenstein EI

更新日期：1991-06-01 00:00:00

abstract：:Observer performance in radiologic interpretation has traditionally been based upon Receiver Operating Characteristic (ROC) analysis. A statistical method that evaluates the reproducibility or consistency of radiologic interpretation is presented. Since this method is not based upon pathologic verification, it cannot ...

journal_title：Investigative radiology

authors： Herman S,DeBoer G,Rideout DF,Majesky IF

更新日期：1984-11-01 00:00:00

abstract：:Proposed causes of renal papillary necrosis (RPN) include tubular toxicity due to hyperconcentration of toxins in the renal medulla and vasoconstriction of medullary vessels with ischemic necrosis. The authors studied these mechanisms in bromoethylamine hydrobromide-induced RPN in rats by microvascular and tubular mic...

journal_title：Investigative radiology

authors： Cuttino JT Jr,Goss FU,Clark RL,Marr MC

更新日期：1981-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The ventral sacroiliac ligament (VSL), which bridges the sacroiliac (SI) joint anteriorly, has been described as an important stabilizing structure of the joint, but no data exist regarding its assessment with routine and advanced imaging methods. The authors determine the imaging appearance of...

journal_title：Investigative radiology

authors： Jaovisidha S,Ryu KN,De Maeseneer M,Haghighi P,Goodwin D,Sartoris DJ,Resnick D

更新日期：1996-08-01 00:00:00

abstract：OBJECTIVE:The aim of the study was to assess the value of in vivo T2 measurements to noninvasively quantify myocardial fibrosis in diabetic mice at 11.75 T. Diabetic cardiomyopathy is characterized by extracellular matrix alteration and microcirculation impairment. These conditions might provide electrical heterogeneit...

journal_title：Investigative radiology

authors： Bun SS,Kober F,Jacquier A,Espinosa L,Kalifa J,Bonzi MF,Kopp F,Lalevee N,Zaffran S,Deharo JC,Cozzone PJ,Bernard M

更新日期：2012-05-01 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：OBJECTIVES:The aim of this study was to quantify image quality gains of a moving coronary plaque phantom using dual-source computed tomography (DSCT) providing 83 milliseconds temporal resolution in direct comparison to 64 slice single-source multidetector CT (MDCT) with a temporal resolution of 165 milliseconds. MATE...

journal_title：Investigative radiology

authors： Reimann AJ,Rinck D,Birinci-Aydogan A,Scheuering M,Burgstahler C,Schroeder S,Brodoefel H,Tsiflikas I,Herberts T,Flohr T,Claussen CD,Kopp AF,Heuschmid M

更新日期：2007-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:A new hepatobiliary gadolinium chelate, gadolinium (Gd) 2,5-BPA-DO3A, was compared in two animal species with Gd HP-DO3A (gadoteridol), a clinically approved extracellular contrast agent, and Gd Cy2-DOTA, a second hepatobiliary chelate in preclinical development. The ligand in Gd 2,5-BPA-DO3A i...

journal_title：Investigative radiology

authors： Runge VM,Wells JW,Williams NM

更新日期：1996-01-01 00:00:00

abstract：:Milestones in the history of phlebography are shortly reviewed. The present state of phlebography with emphasis upon the role of new nonionic contrast media is presented. ...

journal_title：Investigative radiology

authors： Enge I

更新日期：1985-01-01 00:00:00

abstract：OBJECTIVES:The objective of this study was to evaluate the use of dielectric pads for improving high spatial resolution imaging of the inner ear at 7 T. MATERIALS AND METHODS:Two sets of dielectric pads were designed using electromagnetic simulations and implemented using a deuterated suspension of barium titanate. Th...

journal_title：Investigative radiology

authors： Brink WM,van der Jagt AM,Versluis MJ,Verbist BM,Webb AG

更新日期：2014-05-01 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