Effect of lumbar puncture on flow of cerebrospinal fluid.

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: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：:A patient, suffering a severe anaphylactoid reaction to contrast material injected for an intravenous pyelogram, developed a consumption coagulopathy and evidence of complement activation. Precontrast complement values suggested that the patient had been processing complement via the classical pathway, perhaps as a co...

journal_title：Investigative radiology

authors： Lasser EC,Lang JH,Lyon SG,Hamblin AE

更新日期：1980-11-01 00:00:00

abstract：PURPOSE:The aim was to investigate the feasibility and image quality of prospective respiratory gating for 3-D computed tomography (CT) of the lung. MATERIAL AND METHODS:Eight anesthetized pigs underwent prospectively gated multidetector computed tomography using 2 devices: a charge-coupled device (CCD) camera and a l...

journal_title：Investigative radiology

authors： Zaporozhan J,Ley S,Unterhinninghofen R,Saito Y,Fabel-Schulte M,Keller S,Szabo G,Kauczor HU

更新日期：2006-05-01 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：: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 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：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: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：PURPOSE:The relaxivities of 3 macrocyclic gadolinium-based contrast agents (GBCAs) were determined in human plasma and blood under standardized and clinically relevant laboratory conditions. METHODS:The T1 relaxivity, r1, was determined in human plasma at 1.5, 3, and 7 T, and in human blood at 3 T at 37°C in phantoms ...

journal_title：Investigative radiology

authors： Szomolanyi P,Rohrer M,Frenzel T,Noebauer-Huhmann IM,Jost G,Endrikat J,Trattnig S,Pietsch H

更新日期：2019-09-01 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：:A method of teaching radiology residents by identification of general and specific objectives to be accomplished during each time segment of the four-year training program has been developed. The objectives are incorporated into an educational contract that is signed by the resident and rotation director at the beginn...

journal_title：Investigative radiology

authors： Howland WJ,Marler D,Bosshart D

更新日期：1986-12-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To improve the accuracy of magnetic resonance imaging (MRI) in evaluating the response of osteosarcomas to preoperative chemotherapy, the authors developed a technique of mapping tumor necrosis and viability by quantitating slope values of gadolinium-DTPA (Gd-DTPA) uptake on dynamic fast low-an...

journal_title：Investigative radiology

authors： Hanna SL,Parham DM,Fairclough DL,Meyer WH,Le AH,Fletcher BD

更新日期：1992-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Interstitial laser photocoagulation (ILP) causes localized tissue necrosis. This study was performed to determine 1) whether the changes seen on computed tomography (CT) correspond to the necrosis pathologically, and 2) which CT technique best shows the necrosis. METHODS:Eighteen Wistar rats h...

journal_title：Investigative radiology

authors： Amin Z,Thurrell W,Spencer GM,Harries SA,Grant WE,Bown SG,Lees WR

更新日期：1993-12-01 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：OBJECTIVE:Computed tomography (CT) and magnetic resonance imaging (MRI) are introduced as an alternative to traditional autopsy. The purpose of this study was to investigate their accuracy in mass estimation of liver and spleen. METHODS:In 44 cases, the weights of spleen and liver were estimated based on MRI and CT da...

journal_title：Investigative radiology

authors： Jackowski C,Thali MJ,Buck U,Aghayev E,Sonnenschein M,Yen K,Dirnhofer R,Vock P

更新日期：2006-07-01 00:00:00

abstract：BACKGROUND:Nephrogenic systemic fibrosis (NSF) has been related to the use of gadolinium-based contrast agents (GBCAs) in patients undergoing dialysis. The Prospective Fibrose Nephrogénique Systémique study, a French prospective study supported by the French drug regulatory agency (Agence Nationale de Sécurité du Médic...

journal_title：Investigative radiology

authors： Amet S,Launay-Vacher V,Clément O,Frances C,Tricotel A,Stengel B,Gauvrit JY,Grenier N,Reinhardt G,Janus N,Choukroun G,Laville M,Deray G

更新日期：2014-02-01 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：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：OBJECTIVES:The purpose of this study was to assess whether fluorochrome-coupled bacterial magnetic nanoparticles can be used as bimodal contrast agent for both magnetic resonance imaging (MRI) and near-infrared fluorescence optical (NIRF) imaging of cultured macrophages. MATERIALS AND METHODS:Bacterial magnetic nanopa...

journal_title：Investigative radiology

authors： Lisy MR,Hartung A,Lang C,Schüler D,Richter W,Reichenbach JR,Kaiser WA,Hilger I

更新日期：2007-04-01 00:00:00

abstract：:Gastrografin and Amipaque with identical iodine content and flavoring were orally administered in 100 ml doses to 10 healthy volunteers in a double-blind crossover study. The nonionic Amipaque has only about one third of the osmolality of Gastrografin, and draws less fluid into the bowel lumen. Consequently there is l...

journal_title：Investigative radiology

authors： Johansen JG

更新日期：1978-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To compare electron beam tomography (EBT) with MR imaging (MRI) for detection of restenosis after coronary angioplasty (PTCA). METHODS:One hundred eighteen patients after PTCA were investigated. By EBT, 50 axial images were acquired (3-mm slice thickness, 120-160 mL radiographic contrast agent...

journal_title：Investigative radiology

authors： Ropers D,Regenfus M,Stilianakis N,Birke S,Kessler W,Moshage W,Laub G,Daniel WG,Achenbach S

更新日期：2002-07-01 00:00:00

abstract：:Chest radiographs are commonly obtained to assess children for bronchiolitis, both to corroborate the diagnosis and to exclude other diagnostic possibilities. Their utility in this setting has not previously been examined. Using a blinded, randomized study design, we examined the interobserver and intraobserver variat...

journal_title：Investigative radiology

authors： Coblentz CL,Babcook CJ,Alton D,Riley BJ,Norman G

更新日期：1991-02-01 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：PURPOSE:To evaluate the diagnostic performance of 1.0-M gadobutrol-enhanced, 3-dimensional (3D), dynamic MR images with 3D-MR cholangiography (MRC) in the preoperative evaluation of bile duct cancer staging and resectability. MATERIALS AND METHODS:Our institutional review board approved this retrospective study. Sixty...

journal_title：Investigative radiology

authors： Ryoo I,Lee JM,Chung YE,Park HS,Kim SH,Han JK,Choi BI

更新日期：2010-04-01 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：OBJECTIVES:To test the feasibility of a single MR-based examination allowing for the comprehensive assessment of renal anatomy, function, and vascular status in candidates for kidney transplantation. MATERIALS AND METHODS:Twelve healthy potential kidney donors (mean age: 47 +/- 14 [standard deviation] years, 3 men and...

journal_title：Investigative radiology

authors： Rossi C,Boss A,Artunc F,Yildiz S,Martirosian P,Dittmann H,Claussen CD,Heyne N,Schick F,Schlemmer HP

更新日期：2009-11-01 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：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：:Gallbladder sclerotherapy after permanent cystic duct occlusion, to prevent gallstone recurrence in nonsurgical gallstone therapy, is at least a two-stage procedure. A balloon catheter was developed to perform gallbladder sclerotherapy with only temporary occlusion of the cystic duct, and the efficacy and safety of th...

journal_title：Investigative radiology

authors： Brakel K,Laméris JS,Vergunst H,Ten Kate FJ,Nijs HG,Terpstra OT

更新日期：1991-09-01 00:00:00