Computed tomography of the normal radioulnar joints.

abstract：:Advances in the field of magnetic resonance (MR) as it pertains to clinical diagnostic radiology are examined in this review on the basis of publications in Investigative Radiology over the past 2 years (2005-2006). The articles published during that timeframe are discussed, organizationally wise, by anatomic region w...

journal_title：Investigative radiology

authors： Runge VM

更新日期：2006-12-01 00:00:00

abstract：PURPOSE:The purpose of this study was to assess the value of intravoxel incoherent motion and diffusion-weighted imaging for predicting the histologic grade of pancreatic neuroendocrine tumors (PNETs). MATERIALS AND METHODS:Forty patients with surgically diagnosed PNETs who underwent preoperative magnetic resonance im...

journal_title：Investigative radiology

authors： Hwang EJ,Lee JM,Yoon JH,Kim JH,Han JK,Choi BI,Lee KB,Jang JY,Kim SW,Nickel MD,Kiefer B

更新日期：2014-06-01 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：:Video dilution technique (VDT) is currently performed in conjunction with routine cerebral angiography to determine carotid blood flow in humans. Preliminary results indicate that the blood flows (as a percentage of cardial output) of the common, internal, and external carotid arteries are 8.5%, 5.5%, and 3.0%, respec...

journal_title：Investigative radiology

authors： Lantz BM,Dublin AB,McGahan JP,Link DP

更新日期：1981-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors detect activation in the auditory cortex during cochlear electrical stimulation in deaf patients using functional magnetic resonance (MR) imaging. METHODS:Stimulating electrode was inserted gently under local anesthesia close to the round window membrane of the cochlea in seven coc...

journal_title：Investigative radiology

authors： Berthezène Y,Truy E,Morgon A,Giard MH,Hermier M,Franconi JM,Froment JC

更新日期：1997-05-01 00:00:00

abstract：:Dense cavitary "photopenia" was observed on 21 of 200 consecutive stress perfusion scintigrams. A prominent finding in many cases, it sometimes occupied only a portion of the region overlying the ventricular cavity, was often seen in some projections and not others, and was frequently adjacent to myocardial perfusion ...

journal_title：Investigative radiology

authors： Dae M,Canhasi B,Botvinick E,Olvera S,Schechtmann N,Engelstad B,Hattner R,Schiller N,O'Connell W,Faulkner D

更新日期：1985-07-01 00:00:00

abstract：OBJECTIVES:The purposes of this study were to evaluate the reference range of quantitative computed tomography (QCT) measures of lung attenuation and airway parameter measurements in healthy nonsmoking adults and to identify sources of variation in those measures and possible means to adjust for them. MATERIALS AND ME...

journal_title：Investigative radiology

authors： Zach JA,Newell JD Jr,Schroeder J,Murphy JR,Curran-Everett D,Hoffman EA,Westgate PM,Han MK,Silverman EK,Crapo JD,Lynch DA,COPDGene Investigators.

更新日期：2012-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To test noninvasive inductive heating of implanted vascular stents as an alternative approach for reduction or prevention of neointimal hyperplasia. METHODS:Calorimetric pretests were performed to get an orientation on the different parameters of influence for inductive heating of stents. The ...

journal_title：Investigative radiology

authors： Floren MG,Günther RW,Schmitz-Rode T

更新日期：2004-05-01 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：AIM:: We sought to improve the clinical interpretation of first-pass myocardial magnetic resonance perfusion. Parametric analyses of the myocardial distribution of the contrast agent have been proposed. The objective of the present study was to compare the effectiveness of visual analysis and of a parametric approach i...

journal_title：Investigative radiology

authors： Carme S,Maï W,Mazzadi A,Janier M,Revel D,Magnin I,Wiart M,Neyran B,Canet-Soulas E

更新日期：2006-04-01 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 objective of this study was to evaluate the correlation between dynamic gadoxetic acid-enhanced magnetic resonance imaging parameters and specific uptake values (SUVs) derived from ¹⁸fluorodeoxyglucose (¹⁸F-FDG) and ⁶⁸Ga-DOTA-Tyr(3)-octreotate (⁶⁸Ga-DOTATATE) positron emission tomography/computed tomogra...

journal_title：Investigative radiology

authors： Armbruster M,Sourbron S,Haug A,Zech CJ,Ingrisch M,Auernhammer CJ,Nikolaou K,Paprottka PM,Rist C,Reiser MF,Sommer WH

更新日期：2014-01-01 00:00:00

abstract：:Electromagnetic flow measurement study was performed in 20 anesthetized dogs to evaluate the effect of selective celiac infusion of vasopressin on the hepatic arterial vasculature. Teh hepatic arterial flow showed a biphasic response with an initial decrease followed by a substantial increase in spite of a continued ...

journal_title：Investigative radiology

authors： Barr JW,Lakin RC,Rösch J

更新日期：1975-05-01 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：OBJECTIVE:To investigate the effect of saline chase injected at 2 different rates on computed tomography (CT) angiography. MATERIALS AND METHODS:This study was approved by our institutional animal study committee. Three injection protocols were used; contrast injection (24 mL, 0.8 mL/s) without saline chase (protocol ...

journal_title：Investigative radiology

authors： Lee CH,Goo JM,Bae KT,Lee HJ,Kim KG,Chun EJ,Park CM,Im JG

更新日期：2007-07-01 00:00:00

abstract：OBJECTIVES:Magnetic resonance imaging guidance has been sporadically reported for renal tumor cryoablation (CA); therefore, clinical experience with this modality is still limited.The aim of this study is to retrospectively analyze our 10-year experience with renal tumor CA performed on a 1.5 T magnetic resonance imagi...

journal_title：Investigative radiology

authors： Cazzato RL,De Marini P,Leonard-Lorant I,Leclerc L,Auloge P,Tricard T,Dalili D,Garnon J,Lang H,Gangi A

更新日期：2020-09-04 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:To compare the visibility and localization of extratemporal cortical lesions in extratemporal epilepsy by using curved reconstruction (CR) and three-dimensional surface rendering (3D SR) of 3D-acquired MR images and to study the degree of confidence with which localizations are made, particular...

journal_title：Investigative radiology

authors： Meiners LC,Scheffers JM,De Kort GA,Burger H,Van Huffelen AC,Van Rijen PC,Van Veelen CW

更新日期：2001-04-01 00:00:00

abstract：OBJECTIVES:The purpose of our study was to assess the potential for radiation dose reduction in digital postinterventional digital mammograms after marker placement. MATERIALS AND METHODS:One hundred consecutive cases of marker placement (hook-wire localization or postbiopsy clip marker placement), with 200 full-field...

journal_title：Investigative radiology

authors： Riedl CC,Jaromi S,Floery D,Pfarl G,Fuchsjaeger MH,Helbich TH

更新日期：2005-06-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Magnetic resonance imaging (MRI) techniques seem to be very promising for 3D dosimetry studies, but long imaging acquisition time limits their use. A new fast T1 mapping protocol, easy to implement on a conventional MR imager, has been used to determine dose distributions on Fricke gels. METHO...

journal_title：Investigative radiology

authors： Calmet C,Vincensini D,Bonnet J,Bertino C,Catala A,Martinez M,Joffre F

更新日期：1999-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The clinically most widely used devices (Porstmann-plug, Rashkind-umbrella, Botallooccluder) have inherent specific limitations (eg, transarterial approach, residual shunts, limited retrieval). The authors assess practicability, efficacy, and tissue reaction of the new retrievable transvenous p...

journal_title：Investigative radiology

authors： Grabitz RG,Schräder R,Sigler M,Seghaye MC,Dzionsko C,Handt S,Schneidt B,Von Bernuth G

更新日期：1997-09-01 00:00:00

abstract：UNLABELLED:Szapiro D, Ghaye B, Willems V, et al. Evaluation of CT time-density curves of lower-limb veins. Invest Radiol 2001;36:164-169. RATIONALE AND OBJECTIVES:To evaluate time-density curves of the lower-limb veins for optimization of CT venography. METHODS:Fifty patients referred for chest CT were randomized int...

journal_title：Investigative radiology

authors： Szapiro D,Ghaye B,Willems V,Zhang L,Albert A,Dondelinger RF

更新日期：2001-03-01 00:00:00

abstract：:Although general suggestions have been made regarding a radiology residency curriculum, no specific list of entities has been offered. Over the past ten years, we have developed a resident-run morning conference in musculoskeletal radiology that is supervised by faculty and covers a specific curriculum. We offer our c...

journal_title：Investigative radiology

authors： Renfrew DL,el-Khoury GY,Moore TE,Kathol MH,Whitten CG,Walker CW,Fraser-Hill MA

更新日期：1991-11-01 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

authors： Ahuja A,Ying M

更新日期：2002-06-01 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：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:New targeted microbubbles directed to the GPIIb IIIa receptor have been developed. The objective was to determine whether targeting microbubbles to clots would enhance ultrasound imaging. Systematic studies were designed to determine whether in vitro methodology is an acceptable predictor of in...

journal_title：Investigative radiology

authors： Schumann PA,Christiansen JP,Quigley RM,McCreery TP,Sweitzer RH,Unger EC,Lindner JR,Matsunaga TO

更新日期：2002-11-01 00:00:00

abstract：:The effect of three iodinated contrast media (CM) on human plasma butyrylcholinesterase (BuChE) activity was studied during the intravenous pyelography (i.v.P). BuChE is an enzyme that participates in the metabolism of acetylcholine and hydrolyzes food esters and drugs such as nondepolarizing muscle relaxants and loca...

journal_title：Investigative radiology

authors： Mironidou M,Ximitidou O,Christopoulos S,Kokkas B

更新日期：1998-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To develop a new automated calibration method for vessel measurements in vascular x-ray images. METHODS:Radiopaque marker bands mounted equidistantly on a small catheter were acquired in vitro at five image intensifier (II) sizes in x-ray projection images. The positions of the marker centers ...

journal_title：Investigative radiology

authors： Van Assen HC,Vrooman HA,Egmont-Petersen M,Bosch HG,Koning G,Van Der Linden EL,Goedhart B,Reiber JH

更新日期：2000-04-01 00:00:00

abstract：:The large intestines of eight boxer dogs with canine histiocytic ulcerative colitis (CHUC) and 10 normal dogs were studied by in vivo angiography and postmortem microangiography. The vascular abnormalities were correlated with the gross and histologic pathology found at necropsy. The angiographic abnormalities were ...

journal_title：Investigative radiology

authors： Lawson TL,Gomez JA,Margulis AR

更新日期：1975-05-01 00:00:00