Magnetic resonance imaging using gadolinium labeled monoclonal antibody.

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：OBJECTIVES:The aim of this study was to assess quantitative ultra-high b-value (UHB) diffusion magnetic resonance imaging (MRI)-derived parameters in comparison to standard clinical apparent diffusion coefficient (SD-ADC-2b-1000, SD-ADC-2b-1500) for the prediction of clinically significant prostate cancer, defined as G...

journal_title：Investigative radiology

authors： Tavakoli AA,Kuder TA,Tichy D,Radtke JP,Görtz M,Schütz V,Stenzinger A,Hohenfellner M,Schlemmer HP,Bonekamp D

更新日期：2021-02-01 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：OBJECTIVES:The aim of this study was to investigate the feasibility of nonenhanced magnetic resonance angiography (MRA) of the lower extremities at 7 tesla (T). MATERIALS AND METHODS:Eight healthy volunteers were examined on a 7-T whole-body magnetic resonance system. For image acquisition, a custom-built 16-channel t...

journal_title：Investigative radiology

authors： Fischer A,Maderwald S,Orzada S,Johst S,Schäfer LC,Ladd ME,Nassenstein K,Umutlu L,Lauenstein TC

更新日期：2013-07-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to evaluate a high spatial resolution 3-dimensional (3D) contrast-enhanced magnetic resonance (CE-MR) venography protocol for evaluation of intracranial venous system using highly accelerated parallel imaging at 3.0 T. MATERIALS AND METHODS:Ten patients (4 male, 6 female; age,...

journal_title：Investigative radiology

authors： Nael K,Fenchel M,Salamon N,Duckwiler GR,Laub G,Finn JP,Villablanca JP

更新日期：2006-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To develop a computer-assisted analysis of complex joint motion based on standard fluoroscopic sequences. MATERIALS AND METHODS:Fluoroscopic sequences of 10 normal shoulders and 20 patients after total shoulder arthroplasty were recorded during abduction and adduction. The analysis of the shou...

journal_title：Investigative radiology

authors： Pfirrmann CW,Huser M,Székely G,Hodler J,Gerber C

更新日期：2002-02-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors assessed whether a non-sleep-deprived, second-year diagnostic radiology resident assigned to an after-hours "night stalker" emergency radiology (ER) rotation in an urban university hospital has a measurable impact on the number and clinical significance of "missed" radiologic findin...

journal_title：Investigative radiology

authors： Mann FA,Danz PL

更新日期：1993-01-01 00:00:00

abstract：:Thoracic metastases from squamous carcinoma and adenocarcinoma of the cervix were studied by reviewing 245 consecutive cases to describe comparative incidence, natural history, and radiographic patterns. The incidence of chest metastases was higher for adenocarcinoma (20%) than for squamous carcinoma (4%). Few patient...

journal_title：Investigative radiology

authors： Sostman HD,Matthay RA

更新日期：1980-03-01 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：:Ionic (diatrizoate, ioxaglate) and nonionic (iohexol, iosimide, iopromide, and iotrolan) contrast media (CM) were evaluated for their cytogenetic effects in lymphocytes. Heparinized blood was mixed with culture medium RPMI-1640 supplemented with phytohemagglutinin, fetal calf serum, and antibiotics. Plastic tubes cont...

journal_title：Investigative radiology

authors： Parvez Z,Kormano M,Moncada R,Eklund R

更新日期：1986-11-01 00:00:00

abstract：:The results of an in vitro mixed hemadsorption (MHA) assay predicted the success of in vivo tumor localization using a radioiodinated, monoclonal, IgG1 antibody (A2) with reactivity to the human bladder carcinoma cell line RT4. In vitro, murine monoclonal antibodies A2 and G6, demonstrated reactivity to RT4 with titer...

journal_title：Investigative radiology

authors： Gross MD,Skinner RW,Grossman HB

更新日期：1984-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The object of this study was to determine by flow cytometry the cellular and DNA content of the washings of core biopsy samples and needles obtained during stereotactic core biopsies of clinically occult suspicious lesions. METHODS:Fourteen-gauge core multipass biopsy inner-needle saline washi...

journal_title：Investigative radiology

authors： Stomper PC,Budnick RM,Stewart CC

更新日期：1998-01-01 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：: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: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：RATIONALE AND OBJECTIVES:As part of a general examination of the effect of blood flow patterns on the growth and risk of rupture of abdominal aortic aneurysms, the authors investigated the flow through an experimental model of a fusiform aneurysm. MATERIALS AND METHODS:Aneurysms were simulated in polyvinyl chloride tu...

journal_title：Investigative radiology

authors： Schrader T,Peattie RA,Bluth EI,Comstock CE

更新日期：1992-07-01 00:00:00

abstract：:The biliary and urinary excretion of sodium tyropanoate (Bilopaque) and sodium ipodate (Oragrafin) were studied in unanesthetized bile-fistula dogs using stepwise, increasing, intravenous infusions of the contrast materials. A constant intravenous infusion of sodium taurocholate was administered at the rate of either ...

journal_title：Investigative radiology

authors： Berk RN,Loeb PM,Cobo-Frenkel A,Barnhart JL

更新日期：1977-01-01 00:00:00

abstract：:Low-dose transaxial tomography is a technique that can produce cross-sectional images of the hips and femurs in children to permit calculation of the angle of femoral anteversion. Transaxial tomography was compared with computed tomography in terms of measured radiation dose and image quality. Transaxial tomography wa...

journal_title：Investigative radiology

authors： Kushner DC,Cleveland RH,Ehrlich MG,Zaleske DJ,DeLuca SA,Herman TE,Webster EW

更新日期：1985-12-01 00:00:00

abstract：OBJECTIVE:Hydration is widely accepted as an effective measure to prevent contrast media (CM)-induced acute kidney injury (AKI). Whether bicarbonate (NaHCO₃) infusion has a greater effect than saline is disputed. Effective prevention of CM-induced AKI by NaHCO₃ has been found by several clinical trials. However, others...

journal_title：Investigative radiology

authors： Ladwig M,Flemming B,Seeliger E,Sargsyan L,Persson PB

更新日期：2011-11-01 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：OBJECTIVES:The aim of this study was to investigate if pancreatic steatosis measured by proton density fat fraction (PDFF) is associated with exocrine pancreatic function defined by fecal elastase concentrations. MATERIALS AND METHODS:A total of 1458 volunteers (777 women; age range, 21-88 years) underwent magnetic re...

journal_title：Investigative radiology

authors： Kromrey ML,Friedrich N,Hoffmann RT,Bülow R,Völzke H,Weiss FU,Lerch MM,Motosugi U,Kühn JP

更新日期：2019-07-01 00:00:00

abstract：:The design and implementation of a digital radiology image management system requires the definition, evaluation, and comparison of appropriate measures of system performance. The mean throughput rate is an important measure of the actual performance of a finished system. The mean throughput rate identifies the transm...

journal_title：Investigative radiology

authors： Cox GG,Templeton AW,Anderson WH,Cook LT,Hensley KS,Dwyer SJ 3rd

更新日期：1986-02-01 00:00:00

abstract：OBJECTIVES:The safety of nonionic contrast agents with that of ionic iodinated contrast agents in children is compared. METHODS:A comprehensive literature search was conducted to identify all publications on the safety profile of nonionic contrast agents administered intravenously to children. This information was com...

journal_title：Investigative radiology

authors： Cohen MD

更新日期：1993-11-01 00:00:00

abstract：:Maximum likelihood estimation, assuming a binormal model, has been used extensively to estimate the area under receiver operating characteristic (ROC) curves and thus provide an index of diagnostic accuracy for the comparison of two imaging systems. However, in some instances, a degenerate data set results in a fitted...

journal_title：Investigative radiology

authors： Rockette HE,Obuchowski NA,Gur D

更新日期：1990-07-01 00:00:00

abstract：:Receiver operating characteristic (ROC) analysis has been used in a broad variety of medical imaging studies during the past 15 years, and its advantages over more traditional measures of diagnostic performance are now clearly established. But despite the essential simplicity of the approach, workers in the field ofte...

journal_title：Investigative radiology

authors： Metz CE

更新日期：1989-03-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to determine if voxel-based histogram analysis of intravoxel incoherent motion imaging (IVIM) parameters can differentiate various subtypes of renal tumors, including benign and malignant lesions. SUBJECTS AND METHODS:A total of 44 patients with renal tumors who underwent surgery a...

journal_title：Investigative radiology

authors： Gaing B,Sigmund EE,Huang WC,Babb JS,Parikh NS,Stoffel D,Chandarana H

更新日期：2015-03-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to compare the prognostic utility of a staging system using magnetic resonance imaging (MRI) with the seventh American Joint Committee on Cancer (AJCC) staging system in patients with hepatocellular carcinoma (HCC) who underwent hepatic resection. MATERIALS AND METHODS:A total of 1...

journal_title：Investigative radiology

authors： An C,Choi GH,Lee HS,Kim MJ

更新日期：2012-11-01 00:00:00

abstract：:Surgical resection is the standard of care for colorectal metastases isolated to the liver. However, only 10-25% of the patients are eligible for resection because of extent and location of the disease in the liver or concurrent medical conditions. Image-guided radiofrequency (RF) ablation is a minimally invasive tech...

journal_title：Investigative radiology

authors： Lencioni R,Crocetti L,Cioni D,Della Pina C,Bartolozzi C

更新日期：2004-11-01 00:00:00

abstract：:A technique to measure absolute arterial blood flow in ml/min has been developed utilizing software programs with high-speed digital recording for the off-line analysis of intra-arterial injections of contrast medium. Measurements of pulsatile flow in a phantom for a physical flow model showed that calculations with t...

journal_title：Investigative radiology

authors： Forbes G,Gray JE,Felmlee JP

更新日期：1985-03-01 00:00:00

abstract：:The authors reexamined a suspected difference in the effects of clinical information upon detection of nodules vs. more diverse lesions by directly incorporating classification specificity into detection ROC analysis. Categorical prompts, correct for specific abnormalities, led to detection superior to unprompted read...

journal_title：Investigative radiology

authors： Berbaum KS,Franken EA Jr,Dorfman DD,Barloon TJ

更新日期：1988-01-01 00:00:00