Abstract:
OBJECTIVES:To evaluate the diagnostic performance of arterial spin labelling perfusion weighted images (ASL-PWIs) to differentiate primary CNS lymphoma (PCNSL) from glioblastoma (GBM). METHODS:ASL-PWIs of pathologically confirmed PCNSL (n = 21) or GBM (n = 93) were analysed. For qualitative analysis, tumours were visually scored into five categories based on ASL-CBF maps. For quantitative analysis, normalised CBF values were derived by contralateral grey matter (GM) in intra- and peritumoral areas (nCBFintratumoral and nCBFperitumoral, respectively). Visual scoring scales and quantitative parameters from PCNSL and GBM were compared. In addition, the area under the receiver-operating characteristic (ROC) curve was used to determine the diagnostic accuracy of ASL-PWI for differentiating PCNSL from GBM. Weighted kappa or intraclass correlation coefficients (ICCs) were used to assess reliability between two observers. RESULTS:In qualitative analysis, scores 5 (CBFintratumoral>CBFGM, 68.8% [64/93]) and 4 (CBFintratumoral ≈ CBFGM, 47.6% [10/21]) were the most frequently reported scores for GBM and PCNSL, respectively. In quantitative analysis, both nCBFintratumoral and nCBFperitumoral in PCNSL were significantly lower than those in the GBM (nCBFintratumoral, 0.89 ± 0.59 [mean and SD] vs. 2.68 ± 1.89, p < 0.001; nCBFperitumoral, 0.17 ± 0.08 vs. 0.45 ± 0.28, p < 0.001). nCBFperitumoral demonstrated the best diagnostic performance (area under the ROC curve: visual scoring, 0.814; nCBFintratumoral, 0.849; nCBFperitumoral, 0.908; p < 0.001 for all). Interobserver agreements for visual scoring (weighted kappa = 0.869), nCBFintratumoral_GM (ICC = 0.958) and nCBFperitumoral_GM (ICC = 0.947) were all excellent. CONCLUSIONS:ASL-PWI performs well in differentiating PCNSL from GBM in both qualitative and quantitative analyses. KEY POINTS:• ASL-PWI performs well (AUC > 0.8) in differentiating PCNSL from GBM. • The visual scoring template demonstrated good diagnostic performance, similar to quantitative analysis. • nCBFperitumoral demonstrated better diagnostic performance than nCBFintratumoral or visual scoring.
journal_name
Eur Radioljournal_title
European radiologyauthors
You SH,Yun TJ,Choi HJ,Yoo RE,Kang KM,Choi SH,Kim JH,Sohn CHdoi
10.1007/s00330-018-5359-5subject
Has Abstractpub_date
2018-09-01 00:00:00pages
3801-3810issue
9eissn
0938-7994issn
1432-1084pii
10.1007/s00330-018-5359-5journal_volume
28pub_type
杂志文章abstract:PURPOSE:To assess interobserver agreement when using the revised Atlanta classification (RAC) to categorize pancreatic and peripancreatic collections during the first month of acute pancreatitis (AP), and to correlate type of collection to outcome. MATERIAL AND METHODS:This retrospective study of 115 consecutive patie...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5906-0
更新日期:2019-05-01 00:00:00
abstract::The purpose of this study was to assess the diagnostic accuracy of MRI in detecting prosthesis integrity and malignancy after breast augmentation and reconstruction. Forty-one implants in 25 patients were analyzed by MRI before surgical removal. Imaging results were compared with ex vivo findings. Magnetic resonance i...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1362-x
更新日期:2002-09-01 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
pub_type: 杂志文章
doi:10.1007/s003309900222
更新日期:2000-01-01 00:00:00
abstract::Acute liver failure (ALF)-related encephalopathy was previously characterized by MR spectroscopy of single voxels containing both grey and white matter brain tissue. Quantitative multivoxel MRS was used here to compare grey and white matter brain tissue concentrations of glutamate/glutamine (Glx) and lactate in ALF an...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-008-1049-z
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVES:To describe the characteristics of multifocal endosteal thickening in patients on bisphosphonate therapy. METHOD:A retrospective study of 68 patients with atypical femoral fractures (as defined by ASBMR) whilst on bisphosphonate therapy was performed. Femoral radiographs were assessed for: focal endosteal t...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2587-y
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:The aim is to evaluate whether smart worklist prioritization by artificial intelligence (AI) can optimize the radiology workflow and reduce report turnaround times (RTATs) for critical findings in chest radiographs (CXRs). Furthermore, we investigate a method to counteract the effect of false negative predict...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07480-7
更新日期:2020-11-21 00:00:00
abstract:OBJECTIVE:To compare imaging findings with histopathology in AML without visible fat (AMLwvf). MATERIAL AND METHODS:With IRB approval, we identified 18 AMLwvf that underwent CT between 2002-2014. A radiologist measured NECT-attenuation, corticomedullary (CM) and nephrographic (NG) enhancement, echogenicity relative to...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3851-8
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVE:This study aims to investigate whether aneurysm wall enhancement (AWE) is independently associated with symptomatic status of unruptured intracranial aneurysms (UIAs). METHODS:One hundred thirty-nine consecutive patients (67 male, mean age 58 ± 11 years) with 79 symptomatic and 87 asymptomatic UIAs were imag...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07063-6
更新日期:2020-12-01 00:00:00
abstract:OBJECTIVE:To assess the role of colour Doppler flow imaging (CDFI) in the diagnosis and management of lacrimal fossa lesions. METHODS:Institutional ethical committee approval was obtained. Fifty-one patients with 62 lacrimal fossa lesions were retrospectively included from 2003-2015. All patients underwent conventiona...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4438-8
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To evaluate percutaneous computed tomography (CT)-guided intracystic and intra-articular steroid injections for the treatment of lumbar facet joint cyst causing radicular pain. METHODS:A single-centre prospective study involving 120 consecutive patients with symptomatic lumbar facet joint cyst-induced radicu...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2533-z
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVES:To compare software estimates of volumetric breast density (VBD) based on breast tomosynthesis (BT) projections to those based on digital mammography (DM) images in a large screening cohort, the Malmö Breast Tomosynthesis Screening Trial (MBTST). METHODS:DM and BT images of 9909 women (enrolled 2010-2015) w...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5582-0
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:In chemotherapy monitoring, an estimation of the change in tumour size is an important criterion for the assessment of treatment success. This requires a comparison between corresponding lesions in the baseline and follow-up computed tomography (CT) examinations. We evaluate the clinical benefits of an autom...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2545-8
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVES:To evaluate the effectiveness of bag-of-features (BOF)-based radiomics for differentiating ocular adnexal lymphoma (OAL) and idiopathic orbital inflammation (IOI) from contrast-enhanced MRI (CE-MRI). METHODS:Fifty-six patients with pathologically confirmed IOI (28 patients) and OAL (28 patients) were random...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07110-2
更新日期:2021-01-01 00:00:00
abstract::We report on a new minimally invasive technique for the retrieval of a surgical pin fragment after accidental migration into the soft tissue of the shoulder in two patients. The technique is performed under local anaesthesia and uses combined CT and fluoroscopic guidance. The materials used were simple, combining a bo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-009-1499-y
更新日期:2010-01-01 00:00:00
abstract::Developmental symptomatic C1 canal stenosis is very rare. We describe the computed tomography (CT) and magnetic resonance imaging (MRI) appearances in a 8-year-old child who presented with progressive upper and lower limb neurological symptoms and in whom imaging revealed the medial posterior hemiarches of a bifid C1 ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300000755
更新日期:2001-01-01 00:00:00
abstract::Magnetic resonance imaging can be used to measure the muscle volume of a given muscle or muscle group. The purpose of this study was to determine both the intra- and inter-observer variation of the manually outlined volume of the extensor muscles (tibialis anterior, extensor digitorum longus and extensor hallucis long...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1334-1
更新日期:2002-12-01 00:00:00
abstract::The original version of this article, originally published online ahead of printing on January 05, 2018, unfortunately contained mistakes. ...
journal_title:European radiology
pub_type: 杂志文章,已发布勘误
doi:10.1007/s00330-018-5471-6
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVES:To explain the technical principles of and differences between commercially available iterative reconstruction (IR) algorithms for computed tomography (CT) in non-mathematical terms for radiologists and clinicians. METHODS:Technical details of the different proprietary IR techniques were distilled from avai...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2765-y
更新日期:2013-06-01 00:00:00
abstract::Low motion phases for cardiac computed tomography reconstructions are currently detected manually in a user-dependent selection process which is often time consuming and suboptimal. The concept of motion maps was recently introduced to achieve automatic phase selection. This pilot study compared the accuracy of motion...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-005-2849-z
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVE:To evaluate an interactive computer-aided detection (CAD) system for reading mammograms to improve decision making. METHODS:A dedicated mammographic workstation has been developed in which readers can probe image locations for the presence of CAD information. If present, CAD findings are displayed with the c...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-010-1821-8
更新日期:2010-10-01 00:00:00
abstract:OBJECTIVE:To evaluate MRI features of response of primary extremity liposarcoma (LPS) to neoadjuvant radiation therapy (RT) with histopathologic correlation. METHODS:In this IRB-approved study including 125 patients with extremity LPS treated with neoadjuvant RT from 2000 to 2013, MRI of the primary tumour in 18 patie...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3953-3
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVES:The purpose of this study was to assess the protective effect of premedication and changing contrast media (CM) against repeat adverse reactions (ARs) to iodinated CM. METHODS:Between January 2006 and September 2014, 771 cases with previous ARs to CM were administered CM. The same CM that had caused ARs pre...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4028-1
更新日期:2016-07-01 00:00:00
abstract::We examined 20 prediagnostic CTs from 16 patients for whom the diagnosis of pancreatic cancer was delayed until full diagnostic CT was performed. Three radiologists independently reviewed the prediagnostic CTs along with 50 CTs of control subjects, including patients without pancreatic disease (n = 38) or with chronic...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-009-1422-6
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVE:This study determined the effect of dose reduction and kernel selection on quantifying emphysema using low-dose computed tomography (LDCT) and evaluated the efficiency of a deep learning-based kernel conversion technique in normalizing kernels for emphysema quantification. METHODS:A sample of 131 participant...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07020-3
更新日期:2020-12-01 00:00:00
abstract::The appearances of knee injuries on MR imaging are less well documented in children than adults. Some patterns of injury are shared by both groups of patients, e. g. meniscal damage. The frequency of specific injuries may differ, e. g. anterior cruciate ligament (ACL) tear. Congenital abnormality, coexistent pathology...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300050284
更新日期:1997-01-01 00:00:00
abstract::Intraventricular tumours represent a diverse group of lesions, some of them infrequent, with a wide variety of radiological features. Determination of their precise aetiology or origin can be difficult. Nevertheless, considering patient's age, location within the ventricles, and some specific radiological features, th...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300051044
更新日期:2000-01-01 00:00:00
abstract::The aim of this study was to assess radiomorphologic and clinical features of tracheal rupture due to blunt chest trauma. From 1992 until 1998 the radiomorphologic and clinical key findings of all consecutive tracheal ruptures were retrospectively analyzed. The study included ten patients (7 men and 3 women; mean age ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050080
更新日期:2000-01-01 00:00:00
abstract::The purpose of this study was to assess diaphragmatic length and shortening during the breathing cycle in healthy volunteers and patients with a lung tumor using dynamic MRI (dMRI). In 15 healthy volunteers and 28 patients with a solitary lung tumor, diaphragmatic motion and length were measured during the breathing c...
journal_title:European radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00330-004-2336-y
更新日期:2004-08-01 00:00:00
abstract::Our objective was to determine the value of the Ottawa knee rules when applied by users with different levels of clinical training. We used a prospective patient survey by the medical students and surgery residents of a European university trauma centre. The study group consisted of 261 eligible patients who presented...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-001-1198-9
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVES:This study was conducted in order to evaluate whether enhancement types on preoperative MRI can reflect prognostic factors and surgical outcomes in invasive breast cancer. METHODS:Among 484 consecutive patients who underwent preoperative breast MRI from October 2014 to July 2017 for biopsy-proven breast can...
journal_title:European radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00330-019-06236-2
更新日期:2019-12-01 00:00:00