Dose reduction in dynamic perfusion CT of the brain: effects of the scan frequency on measurements of cerebral blood flow, cerebral blood volume, and mean transit time.

abstract：OBJECTIVE:The purpose was to identify distinguishing CT features of pathologically diagnosed asbestosis, and correlate diagnostic confidence with asbestos body burden. METHODS:Thirty-three workers (mean age at CT: 73 years) with clinical diagnoses of asbestosis, who were autopsied (n = 30) or underwent lobectomy (n = ...

journal_title：European radiology

authors： Arakawa H,Kishimoto T,Ashizawa K,Kato K,Okamoto K,Honma K,Hayashi S,Akira M

更新日期：2016-05-01 00:00:00

abstract：OBJECTIVES:To compare a multi-feature-based radiomic biomarker with volumetric analysis in discriminating lung adenocarcinomas with different disease-specific survival on computed tomography (CT) scans. METHODS:This retrospective study obtained institutional review board approval and was Health Insurance Portability a...

journal_title：European radiology

authors： Yuan M,Zhang YD,Pu XH,Zhong Y,Li H,Wu JF,Yu TF

更新日期：2017-11-01 00:00:00

abstract：:The aim of this study was to determine apparent diffusion coefficients (ADCs) of focal liver lesions on the basis of a respiratory triggered diffusion-weighted single-shot echo-planar MR imaging sequence (DW-SS-EPI) and to evaluate whether ADC measurements can be used to characterize lesions. One hundred and two patie...

journal_title：European radiology

authors： Bruegel M,Holzapfel K,Gaa J,Woertler K,Waldt S,Kiefer B,Stemmer A,Ganter C,Rummeny EJ

更新日期：2008-03-01 00:00:00

abstract：OBJECTIVES:Current methods for infarct size and microvascular obstruction (MVO) quantification by cardiac magnetic resonance (CMR) imaging rely on planimetry. This method is time-consuming. We sought to evaluate a direct assessment of MVO severity based on visual evaluation and to compare it to a reference method. MET...

journal_title：European radiology

authors： Sirol M,Gzara H,Gayat E,Dautry R,Gellen B,Logeart D,Soyer P,Vicaut E,Mercadier JJ

更新日期：2016-07-01 00:00:00

abstract：OBJECTIVES:To evaluate early post-operative magnetic resonance (EPMR) as a prognostic tool after resection of glioblastoma. METHODS:Sixty EPMR examinations were evaluated for perioperative infarct, tumour growth between diagnosis and EPMR, contrast enhancement pattern, and extent of resection (EOR). The EOR was approa...

journal_title：European radiology

authors： Majós C,Cos M,Castañer S,Gil M,Plans G,Lucas A,Bruna J,Aguilera C

更新日期：2016-04-01 00:00:00

abstract：OBJECTIVE:To investigate dual-energy CT of hypervascular liver lesions in patients with HCC. METHODS:Forty patients with hepatocellular carcinomas were investigated with abdominal dual-energy CT. In each patient unenhanced and contrast-enhanced imaging with arterial und portovenous delay were performed. Hypervascular ...

journal_title：European radiology

authors： Altenbernd J,Heusner TA,Ringelstein A,Ladd SC,Forsting M,Antoch G

更新日期：2011-04-01 00:00:00

abstract：:Chronic obstructive pulmonary disease (COPD) is one of the leading causes of morbidity and mortality worldwide. COPD is defined by irreversible airflow obstruction. It is a heterogeneous disease affecting the airways (i.e. chronic bronchitis, airway collapse), the parenchyma (i.e. hyperinflation, air trapping and emph...

journal_title：European radiology

authors： Ley-Zaporozhan J,Ley S,Kauczor HU

更新日期：2008-03-01 00:00:00

abstract：:The aim of this study was to test the influence of observer experience on the accuracy for interpreting helical CT for acute pulmonary embolism (PE) and to identify sources of observer errors. Three observers of different expertise blindly assessed 147 helical CT scans for suspected PE (true status regarding absence o...

journal_title：European radiology

authors： van Rossum AB,van Erkel AR,van Persijn van Meerten EL,Ton ER,Rebergen SA,Pattynama PM

更新日期：1998-01-01 00:00:00

abstract：:Meningeal hemangiopericytoma (MHP) is extremely rare in childhood. Mean age at diagnosis is between 38 and 43 years. We present an 8-year-old boy with MHP of the middle cranial fossa. Imaging findings were indistinguishable from an aggressive bone tumor such as Ewing's sarcoma. Imaging findings are presented and discu...

journal_title：European radiology

authors： Huisman TA,Brandner S,Niggli F,Kacl G,Willi UV,Martin E

更新日期：2000-01-01 00:00:00

abstract：:To investigate the influence of age, sex and spinal level on perfusion parameters of normal lumbar bone marrow with dynamic contrast-enhanced MRI (DCE MRI). Sixty-seven subjects referred for evaluation of low back pain or sciatica underwent DCE MRI of the lumbar spine. After subtraction of dynamic images, a region of ...

journal_title：European radiology

authors： Savvopoulou V,Maris TG,Vlahos L,Moulopoulos LA

更新日期：2008-09-01 00:00:00

abstract：:New technologies are needed to characterize the migration and survival of antigen-specific T cells in vivo. In this study, we developed a novel technique for the labeling of human cytotoxic T lymphocytes with superparamagnetic iron-oxide particles and the subsequent depiction with a conventional 1.5-T magnetic resonan...

journal_title：European radiology

authors： Beer AJ,Holzapfel K,Neudorfer J,Piontek G,Settles M,Krönig H,Peschel C,Schlegel J,Rummeny EJ,Bernhard H

更新日期：2008-06-01 00:00:00

abstract：:Our objective was to quantify water volume using magnetic resonance cholangiopancreatography (MRCP) sequences and apply this to secretin-stimulated studies with the aim of quantifying pancreatic exocrine function. A commercially available single-shot MRCP sequence was used in conjunction with a body phased-array coil ...

journal_title：European radiology

authors： Punwani S,Gillams AR,Lees WR

更新日期：2003-02-01 00:00:00

abstract：:The majority of abnormal findings or lesions on T2-weighted fast spin-echo (FSE) magnetic resonance imaging (MRI) are hyperintense due to increased perfusion or fluid content, such as infections, tumours or synovitis. Hypointense lesions on T2-weighted images (both fat-suppressed and non-fat-suppressed) are less commo...

journal_title：European radiology

authors： Wadhwa V,Cho G,Moore D,Pezeshk P,Coyner K,Chhabra A

更新日期：2016-07-01 00:00:00

abstract：:The application of image registration and subtraction to detect change in multiple sclerosis (MS) disease burden on serial MR scans benefits from the use of isotropic voxels. An optimised 3D fast fluid-attenuated inversion recovery (FLAIR) sequence with 1.2- and 1.8-mm cubic voxels was compared with a 2D T2 SE sequenc...

journal_title：European radiology

authors： Tan IL,Pouwels PJ,van Schijndel RA,Adèr HJ,Manoliu RA,Barkhof F

更新日期：2002-03-01 00:00:00

abstract：OBJECTIVE:To analyze the most frequent radiographic features of COVID-19 pneumonia and assess the effectiveness of chest X-ray (CXR) in detecting pulmonary alterations. MATERIALS AND METHODS:CXR of 240 symptomatic patients (70% male, mean age 65 ± 16 years), with SARS-CoV-2 infection confirmed by RT-PCR, was retrospec...

journal_title：European radiology

authors： Vancheri SG,Savietto G,Ballati F,Maggi A,Canino C,Bortolotto C,Valentini A,Dore R,Stella GM,Corsico AG,Iotti GA,Mojoli F,Perlini S,Bruno R,Preda L

更新日期：2020-11-01 00:00:00

abstract：:In the absence of reliable supplies of X-ray film, direct fluoroscopy is still extensively used in Albania, with chest radiology a particularly common application. This paper aims to quantify both patient skin dose and the risk-related quantity effective dose for direct fluoroscopy units based in seven different Alban...

journal_title：European radiology

authors： Marshall NW,Shehu G,Marsh D,Faulkner K,Malone J,Dewhurst K

更新日期：2001-01-01 00:00:00

abstract：OBJECTIVE:To compare the diagnostic performance of models based on a combination of contrast-enhanced (CE) magnetic resonance imaging (MRI) with diffusion-weighted imaging (DWI) or time-intensity curves (TIC) in diagnosing malignancies of breast lesions. METHODS:A double-blind retrospective study was conducted in 328 ...

journal_title：European radiology

authors： Yang X,Dong M,Li S,Chai R,Zhang Z,Li N,Zhang L

更新日期：2020-09-01 00:00:00

abstract：OBJECTIVES:The aim of our study was to evaluate the tumour volume doubling time (TVDT) of molecular breast cancer subtypes by serial ultrasound (US). METHODS:Sixty-six patients (mean age, 50 years; range, 29-78 years) with invasive breast cancer underwent initial and follow-up breast US examinations (at least three mo...

journal_title：European radiology

authors： Ryu EB,Chang JM,Seo M,Kim SA,Lim JH,Moon WK

更新日期：2014-09-01 00:00:00

abstract：OBJECTIVES:Reference ranges of left ventricular (LV) parameters from cardiac magnetic resonance (CMR) were established to investigate the impact of ageing and hypertension as important determinants of cardiac structure and function. METHODS:One thousand five hundred twenty-five contrast-enhanced CMRs were conducted in...

journal_title：European radiology

authors： Bülow R,Ittermann T,Dörr M,Poesch A,Langner S,Völzke H,Hosten N,Dewey M

更新日期：2018-09-01 00:00:00

abstract：OBJECTIVE:To evaluate the feasibility, image quality, and radiation dose of automatic spectral imaging protocol selection (ASIS) and adaptive statistical iterative reconstruction (ASIR) with reduced contrast agent dose in abdominal multiphase CT. METHODS:One hundred and sixty patients were randomly divided into two sc...

journal_title：European radiology

authors： Lv P,Liu J,Chai Y,Yan X,Gao J,Dong J

更新日期：2017-01-01 00:00:00

abstract：OBJECTIVES:To study the effect of inspiration on airway dimensions measured in voluntary inspiration breath-hold examinations. METHODS:961 subjects with normal spirometry were selected from the Danish Lung Cancer Screening Trial. Subjects were examined annually for five years with low-dose CT. Automated software was u...

journal_title：European radiology

authors： Petersen J,Wille MM,Rakêt LL,Feragen A,Pedersen JH,Nielsen M,Dirksen A,de Bruijne M

更新日期：2014-09-01 00:00:00

abstract：OBJECTIVES:Hypoxia is associated with poor prognosis and treatment resistance in breast cancer. However, the temporally variant nature of hypoxia can complicate interpretation of imaging findings. We explored the relationship between hypoxia and vascular function in breast tumours through combined 18F-fluoromisonidazol...

journal_title：European radiology

authors： Carmona-Bozo JC,Manavaki R,Woitek R,Torheim T,Baxter GC,Caracò C,Provenzano E,Graves MJ,Fryer TD,Patterson AJ,Gilbert FJ

更新日期：2021-01-01 00:00:00

abstract：OBJECTIVES:To compare single-energy (SECT) and dual-energy (DECT) abdominal CT examinations in matched patient cohorts regarding differences in radiation dose and image quality performed with second- and third-generation dual-source CT (DSCT). METHODS:We retrospectively analysed 200 patients (100 male, 100 female; mea...

journal_title：European radiology

authors： Wichmann JL,Hardie AD,Schoepf UJ,Felmly LM,Perry JD,Varga-Szemes A,Mangold S,Caruso D,Canstein C,Vogl TJ,De Cecco CN

更新日期：2017-02-01 00:00:00

abstract：OBJECTIVES:To investigate the hepatobiliary enhancement patterns of gadoxetic acid (Gd-EOB-DTPA) MRI and the temporal evolution of focal nodular hyperplasia (FNH)-like lesions in pediatric cancer survivors. METHODS:We retrospectively included pediatric cancer survivors who had new liver lesions detected during surveil...

journal_title：European radiology

authors： Gu K,Jeon TY,Yoo SY,Kim JH

更新日期：2021-01-01 00:00:00

abstract：OBJECTIVES:We describe 64 foetuses with cortical formation abnormalities (CFA) who had two in utero magnetic resonance (iuMR) exams, paying particular detail to those in which the original classification of CFA category changed between the two studies. The goal was to attempt to quantify the value of third-trimester fo...

journal_title：European radiology

authors： Griffiths PD,Severino M,Jarvis D,Mandefield L,Parazzini C,Pinelli L,Di Maurizio M,Triulzi F,Scola E,Conte G,Palumbo G,Genovese M,Rossi A,Guerrini R,Righini A

更新日期：2020-09-04 00:00:00

abstract：:Although the predominant form of tuberculosis is pulmonary disease, an increasing number of cases with extra-pulmonary involvement have been reported. The diagnosis of extra-pulmonary tuberculosis is often difficult because of its protean clinical manifestations and non-specific laboratory findings. Abdominal lymph no...

journal_title：European radiology

authors： De Backer AI,Mortelé KJ,De Roeck J,Ros PR,De Keulenaer BL,Vanschoubroeck IJ,Bomans P

更新日期：2004-04-01 00:00:00

abstract：:The purpose of this article is to report four patients with massive pulmonary embolism treated with percutaneous catheter and guidewire fragmentation and local administration of recombinant tissue plasminogen activator (r-TPA). Four patients with massive pulmonary embolism initially underwent pulmonary angiography. Th...

journal_title：European radiology

authors： Murphy JM,Mulvihill N,Mulcahy D,Foley B,Smiddy P,Molloy MP

更新日期：1999-01-01 00:00:00

abstract：OBJECTIVES:To study the diagnostic value of transluminal attenuation gradient (TAG) measured by coronary computed tomography angiography (CCTA) for identifying relevant dynamic compression of myocardial bridge (MB). METHODS:Patients with confirmed MB who underwent both CCTA and ICA within one month were retrospectivel...

journal_title：European radiology

authors： Li Y,Yu M,Zhang J,Li M,Lu Z,Wei M

更新日期：2017-05-01 00:00:00

abstract：:Varicocele can be very easily diagnosed by physical examination and subsequently treated when it is painful or associated with testicular hypotrophy. However, palpability of the spermatic vein and reflux in low grade or even questionable varicoceles can be difficult to assess without imaging modalities. This can be a ...

journal_title：European radiology

authors： Cornud F,Belin X,Amar E,Delafontaine D,Hélénon O,Moreau JF

更新日期：1999-01-01 00:00:00

abstract：:We report a rare case of primary thoracic rhabdomyosarcoma in a girl who was referred with acute chest pain, hacking cough, and wheezing. A chest X-ray revealed a complete opacity of the right hemithorax. Ultrasound revealed a right-sided pleural effusion and a solid mass above the liver dome, suggesting a neoplastic ...

journal_title：European radiology

authors： Almberger M,Iannicelli E,Matrunola M,Schiavetti A,Capocaccia P

更新日期：2001-01-01 00:00:00