Hyperintense dentate nucleus on unenhanced T1-weighted MR images is associated with a history of brain irradiation.

Abstract:

PURPOSE:To assess the frequency of hyperintensity in the dentate nucleus on T1-weighted magnetic resonance (MR) images and to establish correlations between such hyperintensity and clinical factors, including a history of brain irradiation. MATERIALS AND METHODS:This study was approved by the institutional review board, and each patient provided written informed consent. Three hundred sixty-two patients (164 men, 198 women; mean age, 62 years) were evaluated. Unenhanced T1-weighted MR images were obtained by using a spin-echo sequence at 3.0 T. Two neuroradiologists, who were blinded to clinical data, independently evaluated the signal intensity of the dentate nucleus compared with the signal intensity of the central white matter of the cerebellum by using a four-point graded response scale (grade 4 indicated prominent hyperintensity; grade 3, faint hyperintensity; grade 2, isointensity; and grade 1, hypointensity). Backward stepwise regression analysis was used to evaluate the relationship between signal intensity grades and the following clinical factors: sex, age, the interaction between age and sex, hypertension, dyslipidemia, diabetes mellitus, liver dysfunction, brain infarction, brain tumor, spinocerebellar degeneration, multiple sclerosis, a history of chemotherapy, and a history of brain irradiation. RESULTS:T1-hyperintense dentate nuclei were present in 41 (11%) of the 362 patients. Of these 41 patients, 31 (76%) had a history of brain irradiation. Signal intensity grade of the dentate nucleus on T1-weighted MR images correlated significantly with a history of brain irradiation (P < .001) but no other clinical factor. CONCLUSION:A hyperintense dentate nucleus may be seen on unenhanced T1-weighted MR images in some patients and may be associated with a history of brain irradiation.

journal_name

Radiology

journal_title

Radiology

authors

Kasahara S,Miki Y,Kanagaki M,Yamamoto A,Mori N,Sawada T,Taoka T,Okada T,Togashi K

doi

10.1148/radiol.10100508

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

222-8

issue

1

eissn

0033-8419

issn

1527-1315

pii

radiol.10100508

journal_volume

258

pub_type

杂志文章
  • F-18 fluorodeoxyglucose PET in vivo evaluation of pancreatic glucose metabolism for detection of pancreatic cancer.

    abstract:PURPOSE:To evaluate positron emission tomography (PET) with fluorine-18-labeled fluorodeoxyglucose (FDG) for detection of pancreatic cancer compared with computed tomography (CT) and ultrasonography (US). MATERIALS AND METHODS:Forty patients with suspected pancreatic cancer underwent static PET after intravenous injec...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.192.1.8208970

    authors: Bares R,Klever P,Hauptmann S,Hellwig D,Fass J,Cremerius U,Schumpelick V,Mittermayer C,Büll U

    更新日期:1994-07-01 00:00:00

  • Common bile duct calculi: updated experience with dissolution with methyl tertiary butyl ether.

    abstract::The authors describe their experience with methyl tertiary butyl ether (MTBE) in a larger series of patients than previously reported in order to acquaint physicians with both its effectiveness for dissolution of common bile duct calculi and the limitations of its use. Ten patients with 13 biliary calculi underwent pe...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.166.3.3340760

    authors: Brandon JC,Teplick SK,Haskin PH,Sammon JK,Muhr WF,Hofmann AF,Gambescia RA,Zitomer N

    更新日期:1988-03-01 00:00:00

  • Fine-needle aspiration biopsy of nonpalpable breast lesions in a multicenter clinical trial: results from the radiologic diagnostic oncology group V.

    abstract:PURPOSE:To determine the diagnostic accuracy of ultrasonographically (US) and stereotactically guided fine-needle aspiration biopsy (FNAB) in the diagnosis of nonpalpable breast lesions. MATERIALS AND METHODS:At 18 institutions, 442 women who underwent 22-25-gauge imaging-guided FNAB were enrolled. Definitive surgical...

    journal_title:Radiology

    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

    doi:10.1148/radiology.219.3.r01jn28785

    authors: Pisano ED,Fajardo LL,Caudry DJ,Sneige N,Frable WJ,Berg WA,Tocino I,Schnitt SJ,Connolly JL,Gatsonis CA,McNeil BJ

    更新日期:2001-06-01 00:00:00

  • Arterial trauma: diagnostic and therapeutic angiography.

    abstract::Between 1978 and 1982, 1,200 patients underwent angiography following acute traumatic injury, and arterial injuries were detected in 182 cases (15.2%). Two-thirds of the cases were associated with penetrating trauma; half the injuries occurred in the pelvis or lower extremities. The most common and reliable sign of ar...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.161.1.3763860

    authors: Sclafani SJ,Cooper R,Shaftan GW,Goldstein AS,Glanz S,Gordon DH

    更新日期:1986-10-01 00:00:00

  • Angiographic findings following surgical treatment for renovascular hypertension.

    abstract::The authors present the postoperative angiographic appearance of the revascularized renal artery in 128 patients. The angiographic findings in four types of surgical procedures (saphenous bypass graft, dacron graft, endarterectomy, and reimplantation of the renal artery) are discussed. Postoperative angiography accura...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/126.2.345

    authors: Ekelund L,Gerlock J Jr,Goncharenko V,Foster J

    更新日期:1978-02-01 00:00:00

  • Can noise reduction filters improve low-radiation-dose chest CT images? Pilot study.

    abstract::Effect of noise reduction filters on chest computed tomographic (CT) images acquired with 50% radiation dose reduction was evaluated. Two sets of images were acquired with multi-detector row CT at standard (220-280 mA) and 50% reduced (110-140 mA) tube current at the level of the carina. After postprocessing with six ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2281020606

    authors: Kalra MK,Wittram C,Maher MM,Sharma A,Avinash GB,Karau K,Toth TL,Halpern E,Saini S,Shepard JA

    更新日期:2003-07-01 00:00:00

  • Electron-beam arc therapy using a high energy betatron.

    abstract::Dose distributions in electron-beam arc therapy were investigated using the electron beam from a Brown Boveri 45 MeV betatron. This variable isocenter machine is equipped with an angular speed control device that synchronizes the radiation dose rate with the rotation speed about the isocenter. An Alderson Rando phanto...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/133.2.483

    authors: Ruegsegger DR,Lerude SD,Lyle D

    更新日期:1979-11-01 00:00:00

  • Functional and morphologic evaluation of congenital urinary tract dilatation by using combined static-dynamic MR urography: findings in kidneys with a single collecting system.

    abstract:PURPOSE:To assess combined static-dynamic magnetic resonance (MR) urography in the evaluation of congenital urinary tract dilatation in infants and children. MATERIALS AND METHODS:Sixty-two patients with urinary tract dilatation underwent prospective examination with combined static-dynamic MR urography. A combination...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2243011207

    authors: Rohrschneider WK,Haufe S,Wiesel M,Tönshoff B,Wunsch R,Darge K,Clorius JH,Tröger J

    更新日期:2002-09-01 00:00:00

  • Improved prognosis of women aged 75 and older with mammography-detected breast cancer.

    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

    pub_type: 杂志文章

    doi:10.1148/radiol.14140209

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

    更新日期:2014-12-01 00:00:00

  • Interstitial lung disease: impact of postprocessing in digital storage phosphor imaging.

    abstract::The ability to resolve the fine linear structures of interstitial lung disease is one measure of the limiting performance characteristics of an imaging system. Conventional screen-film radiography was compared with six algorithms of isodose storage phosphor digital radiography (0.2-mm x 10-bit pixel matrix) in the det...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.178.3.1994410

    authors: Schaefer CM,Greene R,Llewellyn HJ,Mrose HE,Pile-Spellman EA,Rubens JR,Lindemann SR

    更新日期:1991-03-01 00:00:00

  • Preliminary experience with a dual cutting edge needle in thoracic percutaneous fine-needle aspiration biopsy.

    abstract::Results of 133 thoracic percutaneous fine-needle aspiration biopsies performed with a new dual cutting edge needle were analyzed to see if it could reduce the false-negative rate for malignancy compared with that achieved with a sharply beveled spinal needle. Results of cytologic examinations were compared with those ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.163.1.3823460

    authors: Weisbrod GL,Herman SJ,Tao LC

    更新日期:1987-04-01 00:00:00

  • Hepatocellular carcinoma treated with percutaneous radio-frequency ablation: usefulness of power Doppler US with a microbubble contrast agent in evaluating therapeutic response-preliminary results.

    abstract:PURPOSE:To evaluate the usefulness of power Doppler ultrasonography (US) with a microbubble contrast agent in assessing the therapeutic response of hepatocellular carcinomas (HCCs) treated with percutaneous radio-frequency (RF) ablation. MATERIALS AND METHODS:Forty patients with 45 nodular HCC lesions 1.0-3.8 cm in di...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.217.2.r00oc07558

    authors: Choi D,Lim HK,Kim SH,Lee WJ,Jang HJ,Lee JY,Paik SW,Koh KC,Lee JH

    更新日期:2000-11-01 00:00:00

  • Comparison of scanning equalization and conventional chest radiography.

    abstract::A clinical comparison study of scanning equalization radiography (SER) and conventional chest radiography was performed with the latest prototype SER system. Conventional chest radiography was performed at 120 kVp with Lanex regular screens (Eastman Kodak, Rochester, NY) and Kodak Ortho-G or Ortho-C film (Eastman Koda...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.172.3.2772170

    authors: Wandtke JC,Plewes DB

    更新日期:1989-09-01 00:00:00

  • Firearm safety in the MR imaging environment.

    abstract::The safety of small-caliber firearms in a 1.5-T magnetic resonance (MR) imaging environment was assessed with six handguns, which were unloaded before testing. Each firearm was withdrawn barrel-first to assess the interaction of the magnetic field with the hammer and/or trigger. Two of the six weapons discharged repro...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.193.3.7972840

    authors: Kanal E,Shaibani A

    更新日期:1994-12-01 00:00:00

  • Nonionic versus ionic contrast media in intravenous urography: clinical trial in 1,000 consecutive patients.

    abstract::A double-blind clinical trial was performed in 1,000 consecutive patients to compare the safety and efficacy of intravenously administered nonionic (iohexol) and ionic (metrizoate) urographic contrast media. The patients ranged in age from 10 to 80 years. The incidence of mild to moderate adverse effects was 7.7% with...

    journal_title:Radiology

    pub_type: 临床试验,杂志文章

    doi:10.1148/radiology.167.3.3283830

    authors: Jacobsson BF,Jorulf H,Kalantar MS,Narasimham DL

    更新日期:1988-06-01 00:00:00

  • Clinical course of patients with squamous cell carcinoma of the upper respiratory and digestive tracts with no evidence of disease 5 years after initial treatment.

    abstract::Eleven hundred sixty-three patients with squamous cell carcinoma of the upper respiratory and digestive tracts, treated from January 1948 through December 1965, had no evidence of disease five years after the initial treatment and no other manifestation of squamous cell carcinoma within the first five years. After fiv...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/115.2.423

    authors: Kogelnik HD,Fletcher GH,Jesse RH

    更新日期:1975-05-01 00:00:00

  • Science to Practice: Hyperpolarized Metabolic MR Imaging--The Light at the End of the Tunnel for Clinical (13)C MR Spectroscopy?

    abstract::Hyperpolarized metabolic magnetic resonance (MR) imaging offers greatly enhanced sensitivity to multinuclear MR spectroscopy, opening up a new tool with which to noninvasively assess metabolic changes in the diseased heart. In this issue of Radiology, O h-Ici et al ( 1 ) have demonstrated this ability by exploring the...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2016152489

    authors: Tyler DJ,Neubauer S

    更新日期:2016-03-01 00:00:00

  • Adult respiratory distress syndrome in children.

    abstract::Clinical, radiological, and pathologic data for nine children with adult respiratory distress syndrome (ARDS) were reviewed. The children ranged in age from 7 months to 15 years (mean age, 7.4 yrs). Underlying diseases and precipitating events included sepsis, pneumonia, near drowning, aspiration pneumonia, central ne...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.157.1.4034980

    authors: Effmann EL,Merten DF,Kirks DR,Pratt PC,Spock A

    更新日期:1985-10-01 00:00:00

  • Liver metastases in candidates for hepatic resection: comparison of helical CT and gadolinium- and SPIO-enhanced MR imaging.

    abstract:PURPOSE:To prospectively compare accuracy of dynamic contrast material-enhanced thin-section multi-detector row helical computed tomography (CT), high-spatial-resolution three-dimensional (3D) dynamic gadolinium-enhanced magnetic resonance (MR) imaging, and superparamagnetic iron oxide (SPIO)-enhanced MR imaging with o...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2371041444

    authors: Ward J,Robinson PJ,Guthrie JA,Downing S,Wilson D,Lodge JP,Prasad KR,Toogood GJ,Wyatt JI

    更新日期:2005-10-01 00:00:00

  • Absolute speeds of screen-film systems and their absorbed-energy constants.

    abstract::Absolute speeds (mR-1) of screen-film systems were determined accurately and precisely from ten independent measurements over a six month period at several beam qualities that included both scatter and scatter-free conditions. The absorbed x-ray energies in the screens that yielded a net film density of 1.0 were obtai...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.151.1.6701320

    authors: Kodera Y,Doi K,Chan HP

    更新日期:1984-04-01 00:00:00

  • Anterolateral impingement of the ankle: effectiveness of MR imaging.

    abstract:PURPOSE:To determine the effectiveness of magnetic resonance (MR) imaging in the diagnosis of anterolateral impingement of the ankle. MATERIALS AND METHODS:MR images were reviewed in 12 patients (12 ankles) with arthroscopically proved anterolateral impingement and in 19 control subjects (20 ankles) with diagnoses oth...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.207.2.9577480

    authors: Farooki S,Yao L,Seeger LL

    更新日期:1998-05-01 00:00:00

  • Sickle cell disease: imaging of cerebrovascular complications.

    abstract::This case is reported because of the unusual blood findings, no duplicate of which I have ever seen described. Whether the blood picture represents merely a freakish poikilocytosis or is dependent on some peculiar physical or chemical condition of the blood, or is characteristic of some particular disease, I cannot at...

    journal_title:Radiology

    pub_type: 杂志文章,评审

    doi:10.1148/radiology.206.2.9457180

    authors: Moran CJ,Siegel MJ,DeBaun MR

    更新日期:1998-02-01 00:00:00

  • Pulmonary embolism: detection with MR perfusion imaging of lung--a feasibility study.

    abstract:PURPOSE:To evaluate the feasibility of magnetic resonance (MR) perfusion imaging in the human lung to help detect perfusion defects distal to suspected pulmonary embolism. MATERIALS AND METHODS:Seven patients suspected of having pulmonary embolism first underwent ventilation-perfusion lung scintigraphy followed by MR ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.203.1.9122390

    authors: Amundsen T,Kvaerness J,Jones RA,Waage A,Bjermer L,Nilsen G,Haraldseth O

    更新日期:1997-04-01 00:00:00

  • Initial M Staging of Rectal Cancer: FDG PET/MRI with a Hepatocyte-specific Contrast Agent versus Contrast-enhanced CT.

    abstract::BackgroundThe performance of PET/MRI in the determination of distant metastases (M stage) in rectal cancer relative to the current practice with contrast material-enhanced CT is largely unknown.PurposeTo compare the staging of clinical M stage rectal cancer with fluorine 18 fluorodeoxyglucose (FDG) PET/MRI (including ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2019190794

    authors: Yoon JH,Lee JM,Chang W,Kang HJ,Bandos A,Lim HJ,Kang SY,Kang KW,Ryoo SB,Jeong SY,Park KJ

    更新日期:2020-02-01 00:00:00

  • Case 241: Hemiparkinsonism- Hemiatrophy-SPECT with 99mTc TRODAT-1 and Muscle MR Imaging Abnormalities.

    abstract::History A 43-year-old right-handed man presented with a history of progressive mild left-sided weakness and slowness of movements. Symptoms began 4 years earlier, and the patient noticed a progressive decline in his daily routine due to gait difficulties in the past year. There was no history of head trauma, surgery, ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2017151717

    authors: Vale TC,de Lima Pinto FC,Pedroso JL,Alves Dos Reis M,Batista IR,Affonseca Bressan R,Magalhães Rivero RL,Mendonça RA,Barsottini OG

    更新日期:2017-05-01 00:00:00

  • Infantile hepatic hemangioendothelioma: a surviving case.

    abstract::A surviving case of infantile hepatic hemangioendothelioma is presented. The patient was treated with a combination of radiation therapy, cytotoxan, and prednisone, resulting in regression of the tumor. ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/123.3.723

    authors: Tewfik H,Latourette H,Christie JH,Tewfik F

    更新日期:1977-06-01 00:00:00

  • Tarsal navicular stress fractures: radiographic evaluation.

    abstract::Tarsal navicular stress fractures are a potential source of disabling foot pain in physically active individuals. The diagnosis of tarsal navicular stress fracture requires a high index of clinical and radiographic suspicion because the fracture is only rarely evident on routine radiographs or standard tomograms. The ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.148.3.6224230

    authors: Pavlov H,Torg JS,Freiberger RH

    更新日期:1983-09-01 00:00:00

  • Hypervascular hepatic metastases: CT evaluation.

    abstract::Recent reports have indicated that non-contrast material-enhanced scans are of less value than urographic contrast material-enhanced studies in the computed tomographic (CT) evaluation of hepatic metastases. The authors retrospectively reviewed the CT scans of 28 patients with hypervascular liver metastases to determi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.162.1.3024210

    authors: Bressler EL,Alpern MB,Glazer GM,Francis IR,Ensminger WD

    更新日期:1987-01-01 00:00:00

  • Primary nasopharyngeal carcinoma: diagnostic accuracy of MR imaging versus that of endoscopy and endoscopic biopsy.

    abstract:PURPOSE:To compare the accuracy of magnetic resonance (MR) imaging with that of the current clinical standard of endoscopy and endoscopic biopsy, to determine whether MR imaging depicts subclinical cancers missed at endoscopy and endoscopic biopsy, and to determine whether MR imaging can identify patients without nasop...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.10101241

    authors: King AD,Vlantis AC,Bhatia KS,Zee BC,Woo JK,Tse GM,Chan AT,Ahuja AT

    更新日期:2011-02-01 00:00:00

  • The role of the radiologist in coronary angiography.

    abstract::Radiology chiefs at hospitals with open heart surgery programs were queried to ascertain both current and desired degrees of participation by radiologists in coronary angiography. While current participation is limited, respondents indicated a desire to achieve increased active participation. Opposition of cardiologis...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/125.2.313

    authors: Levin DC,Adams DF,Abrams HL

    更新日期:1977-11-01 00:00:00