Flow dynamics of cerebrospinal fluid: assessment with phase-contrast velocity MR imaging performed with retrospective cardiac gating.

abstract：:A recently developed duplex ultrasonic imaging system that combines high-resolution real-time imaging with simultaneous Doppler analysis provides accurate evaluation of hemodynamically significant occlusive vascular lesions. This system was used in the evaluation of the extracranial carotid arteries, iliofemoral arter...

journal_title：Radiology

authors： Wetzner SM,Kiser LC,Bezreh JS

更新日期：1984-02-01 00:00:00

abstract：:Experience with 2500 patients over age 30 studied by physical examination, x-ray mammography, and sonography enabled definition of several specific clinical situations in which sonography adds meaningful diagnostic information not provided by either of the other examinations. These include: palpable breast masses for ...

journal_title：Radiology

authors： Sickles EA,Filly RA,Callen PW

更新日期：1984-05-01 00:00:00

abstract：:Involvement of the terminal ileum in cases of cecal carcinoma usually results from direct extension through the cecal wall and ileocecal valve. Extensive lymphatic metastasis from cecal carcinoma can result in deranged lymphatic flow and apparently cause metastatic involvement of the ileum and its mesentery in the abs...

journal_title：Radiology

authors： Moffat RE,Gourley WK

更新日期：1980-04-01 00:00:00

abstract：:There are multiple causes for hematuria in infants and children. When hematuria is accompanied by dysuria, however, one should focus attention on the lower urinary tract. Although ultrasound (US) is a well-established method for assessing the kidneys and bladder, little attention has been focused on its use for evalua...

journal_title：Radiology

authors： Kessler A,Rosenberg HK,Smoyer WE,Blyth B

更新日期：1992-12-01 00:00:00

abstract：PURPOSE:To establish a protocol for credentialed pediatric radiology nurses, with radiologist supervision, to administer ketamine to induce sedation and analgesia during interventional radiologic procedures. MATERIALS AND METHODS:This study was conducted in two phases. The goal of the first phase was to develop a seda...

journal_title：Radiology

authors： Mason KP,Michna E,DiNardo JA,Zurakowski D,Karian VE,Connor L,Burrows PE

更新日期：2002-11-01 00:00:00

abstract：:In this second part of the report, the authors discuss the advantages and disadvantages of several embolization agents. These include Gelfoam, silicone spheres, polyvinyl alcohol foam (PVA), isobutyl-2-cyanoacrylate (IBCA), silicone fluid mixtures, and tantalum powder. The techniques employed and conditions under whic...

journal_title：Radiology

authors： Berenstein A,Kricheff II

更新日期：1979-09-01 00:00:00

abstract：:A 20-MHz intravascular ultrasound (US) transducer inside a percutaneously inserted catheter was used to evaluate inferior vena caval (IVC) filters for thrombi in vitro and in vivo. Six different IVC filters were studied with intravascular US in a saline-filled model. Each filter had a characteristic, recognizable US p...

journal_title：Radiology

authors： McCowan TC,Ferris EJ,Carver DK

更新日期：1990-12-01 00:00:00

abstract：:To reduce radiation exposure to patients and staff during neurointerventional procedures, region-of-interest (ROI) techniques were used with fluoroscopy, road mapping, and digital subtraction angiography in 19 patients. ROI filters, made of multiple layers of gadolinium, were attached to the collimators. Patient skin ...

journal_title：Radiology

authors： Rudin S,Guterman LR,Granger WE,Bednarek DR,Hopkins LN

更新日期：1996-06-01 00:00:00

abstract：:An aortobronchial fistula is a rare condition that is invariably fatal if not diagnosed and surgically treated. Aortic aneurysms, both atherosclerotic and infective, were the main causes in the originally described cases. However, thoracic cardiovascular surgery has recently become the predominant cause. The authors d...

journal_title：Radiology

authors： Garniek A,Morag B,Schmahmann S,Rubinstein ZJ

更新日期：1990-05-01 00:00:00

abstract：:Background Patients with wrist trauma and negative findings on radiographs often undergo additional MRI examinations to assess for radiographically occult fractures. Dual-energy CT may be more readily available than MRI in some settings. Purpose To evaluate the diagnostic test accuracy of dual-energy CT in helping det...

journal_title：Radiology

authors： Müller FC,Gosvig KK,Børgesen H,Gade JS,Brejnebøl M,Rodell A,Nèmery M,Boesen M

更新日期：2020-09-01 00:00:00

abstract：:58 cases of breast cancer treated primarily by radiotherapy were evaluated to determine the optimum dose for local control. Of 36 patients with T1 + T2 lesions who had tumorectomy prior to radiotherapy, incomplete excision of tumor was demonstrated on microscopic examination in 18. The minimum tumor dose to the breast...

journal_title：Radiology

authors： Ghossein NA,Stacey P,Alpert RT,Ager PJ,Krishnaswamy V

更新日期：1976-11-01 00:00:00

abstract：PURPOSE:To assess methods of standard uptake ratio (SUR) calculation with 2-deoxy-2-[fluorine-18]fluoro-D-glucose (FDG) positron emission tomography (PET) in indeterminate focal pulmonary abnormalities. MATERIALS AND METHODS:One hundred ninety-seven adult patients with indeterminate pulmonary abnormalities had complet...

journal_title：Radiology

authors： Lowe VJ,Duhaylongsod FG,Patz EF,Delong DM,Hoffman JM,Wolfe WG,Coleman RE

更新日期：1997-02-01 00:00:00

abstract：PURPOSE:To evaluate the effect of a reduction in iodine dose by altering volume and/or concentration of contrast material on hepatic contrast enhancement (HCE) values during hepatic helical computed tomography (CT). MATERIALS AND METHODS:One hundred eleven patients were randomized into four contrast material protocols...

journal_title：Radiology

authors： Freeny PC,Gardner JC,vonIngersleben G,Heyano S,Nghiem HV,Winter TC

更新日期：1995-10-01 00:00:00

abstract：PURPOSE:To evaluate the characteristics and outcomes of women aged 75 years and older with mammography-detected breast cancer, an age group not represented in mammography screening effectiveness studies. MATERIALS AND METHODS:We conducted a HIPAA-compliant, prospective cohort study with waiver of informed consent in p...

journal_title：Radiology

authors： Malmgren JA,Parikh J,Atwood MK,Kaplan HG

更新日期：2014-12-01 00:00:00

abstract：PURPOSE:To investigate whether multispectral optoacoustic tomography (MSOT) can reveal the heterogeneous distributions of exogenous agents of interest and vascular characteristics through tumors of several millimeters in diameter in vivo. MATERIALS AND METHODS:Procedures involving animals were approved by the governme...

journal_title：Radiology

authors： Herzog E,Taruttis A,Beziere N,Lutich AA,Razansky D,Ntziachristos V

更新日期：2012-05-01 00:00:00

abstract：:Blunt trauma to the abdomen is the main cause of pancreatic injury in childhood. One of the most common causes of injury is child abuse. Pancreatitis, pancreatic pseudocyst, and loculated peripancreatic effusion are sequellae of this trauma. The diagnosis of these lesions is aided by ultrasound. Pancreatic injury in c...

journal_title：Radiology

authors： Slovis TL,VonBerg VJ,Mikelic V

更新日期：1980-04-01 00:00:00

abstract：:The diagnostic potential of volume-selective proton magnetic resonance (MR) spectroscopy in vivo was evaluated in 20 children and young adults with various neurodegenerative brain disorders. All patients were examined with MR spectroscopy in conjunction with MR imaging of the brain on a whole-body imager at 1.5 T. Com...

journal_title：Radiology

authors： Grodd W,Krägeloh-Mann I,Klose U,Sauter R

更新日期：1991-10-01 00:00:00

abstract：:Background Intracranial atherosclerosis is an important cause of ischemic stroke and is associated with several vascular risk factors. Current imaging is mainly based on the assessment of luminal narrowing rather than abnormalities in the vessel wall. Purpose To investigate the relationship between vascular risk facto...

journal_title：Radiology

authors： Lindenholz A,van der Kolk AG,van der Schaaf IC,van der Worp HB,Harteveld AA,Dieleman N,Bots ML,Hendrikse J

更新日期：2020-04-01 00:00:00

abstract：PURPOSE:To retrospectively determine the frequency and severity of various abnormal laboratory test values following percutaneous cryoablation of liver tumors and to estimate the correlation between laboratory test values and tumor and ablation volumes. MATERIALS AND METHODS:This HIPAA-compliant study had institutiona...

journal_title：Radiology

authors： Nair RT,Silverman SG,Tuncali K,Obuchowski NA,vanSonnenberg E,Shankar S

更新日期：2008-07-01 00:00:00

abstract：:A method is presented for acquiring magnetic resonance (MR) images in parallel from both members of a pair of organs, such as the temporomandibular joint (TMJ), with use of two surface coil receivers. Interleaved sagittal sections are broken into two groups, one on each side of the head, and the MR receiver is toggled...

journal_title：Radiology

authors： Hardy CJ,Katzberg RW,Frey RL,Szumowski J,Totterman S,Mueller OM

更新日期：1988-06-01 00:00:00

abstract：:To reduce noise in velocity images of magnetic resonance (MR) phase-contrast measurements, the authors implemented and evaluated a pulse sequence that enables automatic optimization of the velocity-encoding parameter V(enc) for individual heart phases in pulsatile flow on the basis of a rapid prescan. This sequence wa...

journal_title：Radiology

authors： Ringgaard S,Oyre SA,Pedersen EM

更新日期：2004-07-01 00:00:00

abstract：PURPOSE:To assess the value of vertebral body endplate signal intensity (Modic) changes on magnetic resonance (MR) images in predicting a painful disk, with provocative diskography as the reference standard. MATERIALS AND METHODS:Lumbar spine diskograms and prediskogram MR images of 736 patients (2457 disks) were retr...

journal_title：Radiology

authors： Thompson KJ,Dagher AP,Eckel TS,Clark M,Reinig JW

更新日期：2009-03-01 00:00:00

abstract：:Purpose To compare lobar ventilation and apparent diffusion coefficient (ADC) values obtained with hyperpolarized xenon 129 (129Xe) magnetic resonance (MR) imaging to quantitative computed tomography (CT) metrics on a lobar basis and pulmonary function test (PFT) results on a whole-lung basis in patients with chronic ...

journal_title：Radiology

authors： Matin TN,Rahman N,Nickol AH,Chen M,Xu X,Stewart NJ,Doel T,Grau V,Wild JM,Gleeson FV

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:To determine the effect of the interpretation of plain chest radiographs on the time to definitive diagnosis of aortic dissection. MATERIALS AND METHODS:The authors evaluated chest radiographs from 75 patients in whom chest radiography was performed before aortic dissection was diagnosed. The radiographs and a...

journal_title：Radiology

authors： Luker GD,Glazer HS,Eagar G,Gutierrez FR,Sagel SS

更新日期：1994-12-01 00:00:00

abstract：:Computed tomography has been utilized to guide a needle into central nervous system lesions as small as one centimeter in diameter. Direct puncture has drained many abscesses effectively, provided material for immediate Gram stain and subsequent culture, and permitted irrigation with appropriate antibioties, Multilocu...

journal_title：Radiology

authors： Moran CJ,Naidich TP,Gado MH,Marchosky JA

更新日期：1979-06-01 00:00:00

abstract：:The medical records and radiographs of 62 patients admitted for smoke inhalation were reviewed to determine the value of the plain chest radiograph in the early detection of inhalation injury. Pulmonary edema resulting from the inhalation injury often leads to pulmonary insufficiency, and its early diagnosis is crucia...

journal_title：Radiology

authors： Teixidor HS,Rubin E,Novick GS,Alonso DR

更新日期：1983-11-01 00:00:00

abstract：:The ultrasonic appearance of the normal and abnormal fetal spine before 20 weeks' gestation was reviewed in 121 pregnances. A model was constructed to establish the mechanism of production in the various configurations seen. The relative roles of ultrasonography, alpha fetoprotein assay, and fetoscopy in the diagnosis...

journal_title：Radiology

authors： Miskin M,Baim RS,Allen LC,Benzie RJ

更新日期：1979-07-01 00:00:00

abstract：:The sequelae of disk degeneration are among the leading causes of functional incapacity in both sexes and are a common source of chronic disability in the working years. Disk degeneration involves structural disruption and cell-mediated changes in composition. Mechanical, traumatic, nutritional, and genetic factors al...

journal_title：Radiology

authors： Modic MT,Ross JS

更新日期：2007-10-01 00:00:00

abstract：PURPOSE:To evaluate initial radiologic findings of symptomatic intracranial vertebrobasilar dissections (VBDs) as well as the results at follow-up imaging of dissections that are conservatively managed. MATERIALS AND METHODS:The respective institutional review boards approved this retrospective study and waived the ne...

journal_title：Radiology

authors： Ahn SS,Kim BM,Suh SH,Kim DJ,Kim DI,Shin YS,Ha SY,Kwon YS

更新日期：2012-07-01 00:00:00

abstract：PURPOSE:To assess whether a combination of functional (planar imaging and single photon emission computed tomography [SPECT]) and anatomic (magnetic resonance [MR] imaging) imaging techniques can be used to noninvasively quantify tumor expression of a somatostatin receptor type 2A (SSTR2A) gene chimera in vivo. MATERI...

journal_title：Radiology

authors： Yang D,Han L,Kundra V

更新日期：2005-06-01 00:00:00