Abstract:
:Lesion area measurement in multiple sclerosis (MS) is one of the key points in evaluating the natural history and in monitoring the efficacy of treatments. This study was performed to check the intra- and inter-observer agreement variability of a locally developed Growing Region Segmentation Software (GRES), comparing them to those obtained using manual contouring (MC). From routine 1.5-T MRI study of clinically definite multiple sclerosis patients, 36 lesions seen on proton-density-weighted images (PDWI) and 36 enhancing lesion on Gd-DTPA-BMA-enhanced T1-weighted images (Gd-T1WI) were randomly chosen and were evaluated by three observers. The mean range of lesion size was 9.9-536.0 mm(2) on PDWI and 3.6-57.2 mm(2) on Gd-T1WI. The median intra- and inter-observer agreement were, respectively, 97.1 and 90.0% using GRES on PDWI, 81.0 and 70.0% using MC on PDWI, 88.8 and 80.0% using GRES on Gd-T1WI, and 85.8 and 70.0% using MC on Gd-T1WI. The intra- and inter-observer agreements were significantly greater for GRES compared with MC ( P<0.0001 and P=0.0023, respectively) for PDWI, while no difference was found between GRES an MC for Gd-T1WI. The intra-observer variability for GRES was significantly lower on both PDWI ( P=0.0001) and Gd-T1WI ( P=0.0067), whereas for MC the same result was found only for PDWI ( P=0.0147). These data indicate that GRES reduces both the intra- and the inter-observer variability in assessing the area of MS lesions on PDWI and may prove useful in multicentre studies.
journal_name
Eur Radioljournal_title
European radiologyauthors
Parodi RC,Sardanelli F,Renzetti P,Rosso E,Losacco C,Ferrari A,Levrero F,Pilot A,Inglese M,Mancardi GLdoi
10.1007/s003300100978subject
Has Abstractpub_date
2002-04-01 00:00:00pages
866-71issue
4eissn
0938-7994issn
1432-1084journal_volume
12pub_type
杂志文章abstract::Dual-energy computed tomography (DECT) allows distinguishing between tissues with similar X-ray attenuation but different atomic numbers. Recent studies demonstrated that this technique has several areas of application in patients with ischemic stroke and a potential impact on patient management. After endovascular st...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-020-07543-9
更新日期:2020-12-14 00:00:00
abstract:OBJECTIVES:To compare the significance of the two-compartment model, considering diffusional anisotropy with conventional diffusion analyzing methods regarding the detection of occult changes in normal-appearing white matter (NAWM) of multiple sclerosis (MS). METHODS:Diffusion-weighted images (nine b-values with six d...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3572-4
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVE:To explore the value of intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) for the prediction of pathologic response to neoadjuvant chemotherapy (NAC) in locally advanced esophageal squamous cell carcinoma (ESCC). MATERIAL AND METHODS:Forty patients with locally advanced ESCC who were treated...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07248-z
更新日期:2020-09-08 00:00:00
abstract::The aim of this study was to describe type and rate of complications in a series of patients with liver tumors treated by the radiofrequency (RF) expandable system. A total of 166 patients, 114 with hepatocellular carcinoma (HCC; 92 small HCC, 22 large) and 52 with liver metastasis, were treated by the percutaneous RF...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-003-1990-9
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVES:To assess long-term prognosis after low-dose 64-slice coronary computed tomography angiography (CCTA) using prospective electrocardiogram-triggering. METHODS:We included 434 consecutive patients with suspected or known coronary artery disease referred for low-dose CCTA. Patients were classified as normal, w...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-017-4849-1
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVE:To compare image quality and radiation dose using Adaptive Statistical Iterative Reconstruction (ASiR) and Filtered Back Projection (FBP) in patients weighing ≥ 91 kg. METHODS:In this Institution Review Board-approved retrospective study, single-phase contrast-enhanced abdominopelvic CT examinations of 100 a...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2424-3
更新日期:2012-08-01 00:00:00
abstract::Imaging methods assist in the pre-treatment planning of laryngeal and hypopharyngeal neoplasms, by better defining the local extension of infiltrating tumours and by detecting subclinical neck adenopathies. Imaging has also an important role in excluding or detecting distant metastasis. Furthermore, there is evidence ...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-006-0301-7
更新日期:2006-11-01 00:00:00
abstract::Circumscribed radiolucencies within the vertebral bones can be due to a variety of changes including benign and malignant tumours or tumour-like lesions. Radiolucencies due to degenerative intraosseous pneumatocyst are very uncommon but have to be taken into the differential diagnosis in well-circumscribed lytic lesio...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300000490
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVES:To investigate the diagnostic value of intravoxel incoherent motion (IVIM) DWI for placenta accreta by comparing diffusion and perfusion characteristics of placentas with accreta lesions (APs) with those of normal placentas (NPs). METHODS:Twenty-five pregnant women with AP and 24 with NP underwent 3-T magne...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07200-1
更新日期:2021-02-01 00:00:00
abstract::The purpose was to analyse the aetiology and ultrasound appearances of segmental testicular infarction. Patients with focal testicular lesions underwent colour Doppler high frequency ultrasound. Segmental testicular infarction was defined as any focal area of altered reflectivity, with or without focal enlargement wit...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-007-0674-2
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVES:To compare radiation doses in cone beam computed tomography (CBCT) with those of multi-detector computed tomography (MDCT) using manufacturers' standard protocols. METHODS:Dose-levels in head and abdominal imaging were evaluated using a dosimetric phantom. Effective dose estimates were performed by placing ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-013-2934-7
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the feasibility of dual-energy CT (DECT) ventilation imaging in combination with DE perfusion mapping for a comprehensive assessment of ventilation, perfusion, morphology and structure of the pulmonary parenchyma. METHODS:Two dual-energy CT acquisitions for xenon-enhanced ventilation and iodine-e...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-010-1866-8
更新日期:2010-12-01 00:00:00
abstract::The aim of the study was to compare prospectively magnetic resonance cholangiography (MRC) and magnetic resonance imaging (MRI) with endoscopic retrograde cholangiography (ERC) in the diagnosis and staging of Klatskin tumours of the biliary tree (hilar cholangiocarcinomas). Forty-six patients with suspected Klatskin t...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-005-0139-4
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVES:To investigate the repeatability, reproducibility, and staging and monitoring of the performance of native T1 mapping for noninvasively assessing liver fibrosis in comparison with acoustic radiation force impulse (ARFI) elastography. METHODS:The repeatability and reproducibility were explored in 8 male Spra...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06335-0
更新日期:2020-01-01 00:00:00
abstract::The aim of this study was to assess the upper airway status of sleep apnea syndrome (SAS) patients with low-field MR fluoroscopy. Twenty patients with clinically diagnosed SAS underwent upper airway monitoring using MR fluoroscopy for 5 min while awake and for 30 min while asleep. A 0.064-T permanent-magnet MR imaging...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050816
更新日期:1999-01-01 00:00:00
abstract::Digital imaging (digital image intensifier radiography, storage phosphor/selenium radiography) is increasingly becoming commonplace in radiology departments for diagnostic purposes. Despite 10 years of experience, the advantages and disadvantages of those methods are still heavily discussed among users, financiers and...
journal_title:European radiology
pub_type: 杂志文章
doi:
更新日期:1997-02-21 00:00:00
abstract:OBJECTIVES:To analyze the effect of preoperative body composition on survival in patients with pancreatic cancer following pancreaticoduodenectomy (PD). METHODS:Between October 2005 and August 2018, 116 patients (68 men, 48 women, mean age 66.2 ± 11.9 years) diagnosed with pancreatic adenocarcinoma following PD were r...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07294-7
更新日期:2020-09-24 00:00:00
abstract::Percutaneous thrombectomy (PT) is an established technique for the removal of acute thrombus in occluded arteries, veins and vascular grafts. Percutaneous thrombectomy can be used as an adjunctive treatment to other methods of thrombus removal such as thrombolysis or as sole therapy. The two main methods are percutane...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300101014
更新日期:2002-01-01 00:00:00
abstract::The aim of the study was to evaluate the role of MR urography (MRU) in the diagnosis of obstructive uropathy in selected groups of patients. The groups involved following pathologies: calculi; strictures of ureteropelvic junction (UPJ); benign and malignancy-induced ureterostenosis. Sixty patients with clinical diagno...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1550-8
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVES:Liver-specific MRI is a fast-growing field, with technological and protocol advancements providing more robust imaging and allowing a greater depth of information per examination. This article reports the evidence for, and expert thinking on, current challenges in liver-specific MRI, as discussed at the 7th ...
journal_title:European radiology
pub_type: 共识发展会议,杂志文章
doi:10.1007/s00330-015-3873-2
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVES:To investigate how normal liver parenchyma visibility on 3 T diffusion-weighted images (DWI) and apparent diffusion coefficient (ADC) quantification are influenced by age, gender, and iron content. METHODS:Between February 2011 and April 2013, 86 patients (52 women) with normal livers who underwent respirat...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3353-0
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVES:To develop an MRI enterography global score (MEGS) of Crohn's disease (CD) activity compared with a reference standard of faecal calprotectin (fC), C-reactive protein (CRP) and Harvey-Bradshaw index (HBI). METHODS:Calprotectin, CRP and HBI were prospectively recorded for 71 patients (median age 33, male 35)...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-013-3010-z
更新日期:2014-02-01 00:00:00
abstract::To assist the radiologist in differentiating the colitis in children, this review proposes a systematic US approach to the disease, presents the US aspect of the normal colon and describes three distinctive US patterns reflecting the intramural extension of the histopathological changes. Each pattern corresponds to on...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-004-2358-5
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVES:To assess whether diffusion-weighted magnetic resonance imaging (DW-MRI) including bi-exponential fitting helps to detect residual/recurrent tumours after (chemo)radiotherapy of laryngeal and hypopharyngeal carcinoma. METHODS:Forty-six patients with newly-developed/worsening symptoms after (chemo)radiothera...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2596-x
更新日期:2013-02-01 00:00:00
abstract::Our purpose was to assess the role of MRI in evaluating the musculoskeletal system in athletes with chronic pain laterally in the groin of unknown etiology. Magnetic resonance imaging (MRI) of the pubic ring was performed in 11 young athletes (soccer players) with long-standing groin pain. MR findings were compared wi...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/BF00619952
更新日期:1996-01-01 00:00:00
abstract:OBJECTIVES:Metastatic breast cancer is a heterogeneous disease, commonly affecting the liver. We report our experience with (90)Y radioembolisation (RE) and its effects on the survival of patients with treatment-refractory breast cancer liver metastases. METHODS:A total of 77 female patients affected by breast cancer ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2556-5
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:To develop a model for differentiating the predominant subtype-based prognostic groups of lung adenocarcinoma using CT radiomic features, and to validate its performance in comparison with radiologists' assessments. METHODS:A total of 993 patients presenting with invasive lung adenocarcinoma between March 2...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-06805-w
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVES:To assess the accuracy and efficiency of a threshold-based, semi-automated cardiac MRI segmentation algorithm in comparison with conventional contour-based segmentation and aortic flow measurements. METHODS:Short-axis cine images of 148 patients (55 ± 18 years, 81 men) were used to evaluate left ventricular...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3952-4
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVES:To compare 0.15 mmol/kg gadobutrol for late gadolinium enhancement (LGE) imaging of chronic myocardial infarction with a relaxivity-adjusted dose of gadoterate meglumine (Gd-DOTA). METHODS:Seventeen patients with suspected chronic myocardial infarction underwent LGE imaging at 1.5 T, acquiring an inversion-...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2563-6
更新日期:2013-01-01 00:00:00
abstract::This paper evaluates the management of 31 patients with bile leaks identified over a 7-year period. Leaks complicated cholecystectomy in 19 patients (11 laparoscopic, 8 open), interventional procedures in 10 (including surgery in 1), trauma in one and was spontaneous in one case. Confirmation of the diagnosis typicall...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050595
更新日期:1998-01-01 00:00:00