Abstract：
OBJECTIVE:To test a digital imaging X-ray device based on the direct capture of X-ray photons with pixel detectors, which are coupled with photon-counting readout electronics. METHODS:The chip consists of a matrix of 256 × 256 pixels with a pixel pitch of 55 μm. A monolithic image of 11.2 cm × 7 cm was obtained by the consecutive displacement approach. Images of embalmed anatomical specimens of eight human hands were obtained at four different dose levels (skin dose 2.4, 6, 12, 25 μGy) with the new detector, as well as with a flat-panel detector. RESULTS:The overall rating scores for the evaluated anatomical regions ranged from 5.23 at the lowest dose level, 6.32 at approximately 6 μGy, 6.70 at 12 μGy, to 6.99 at the highest dose level with the photon-counting system. The corresponding rating scores for the flat-panel detector were 3.84, 5.39, 6.64, and 7.34. When images obtained at the same dose were compared, the new system outperformed the conventional DR system at the two lowest dose levels. At the higher dose levels, there were no significant differences between the two systems. CONCLUSION:The photon-counting detector has great potential to obtain musculoskeletal images of excellent quality at very low dose levels.
journal_name
Eur Radioljournal_title
European radiologyauthors
Gruber M,Homolka P,Chmeissani M,Uffmann M,Pretterklieber M,Kainberger Fdoi
10.1007/s00330-011-2246-8subject
Has Abstractpub_date
2012-01-01 00:00:00pages
205-10issue
1eissn
0938-7994issn
1432-1084journal_volume
22pub_type
杂志文章abstract：OBJECTIVE:Clinical hepatic diffusion weighted imaging (DWI) generally relies on mono-exponential diffusion. The aim was to demonstrate that mono-exponential diffusion in the liver is contaminated by microperfusion and that the bi-exponential model is required. METHODS:Nineteen fasting healthy volunteers were examined ...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-011-2313-1
更新日期：2012-04-01 00:00:00
abstract：INTRODUCTION:Numerous publications have studied the regional anatomy of the carpal tunnel to define a "safe zone" to reduce the risk of perioperative neurovascular complications. This zone, located between the ulnar neurovascular bundle and the median nerve, is considered to be safe mainly because of the absence of vas...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-019-06416-0
更新日期：2020-02-01 00:00:00
abstract：PURPOSE:To evaluate the prognosis of "strict" high-risk nodules (small hepatocellular nodules detected only in the hepatobiliary phase of initial Gd-EOB-DTPA-enhanced MR examination) in patients with cirrhosis or chronic hepatitis. METHODS AND MATERIALS:The study included thirty-three patients with 60 "strict" high-ri...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-014-3293-8
更新日期：2014-10-01 00:00:00
abstract：:We retrospectively reviewed surgical biopsy findings of lesions diagnosed as radial scars (RS) at stereotactic core-needle biopsy (SCNB). RS was diagnosed in 52 of 1415 (3.7%) consecutive mammographically detected lesions that underwent 14-gauge automated SCNB. Subsequent surgical biopsy findings were available for 43...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-006-0196-3
更新日期：2006-08-01 00:00:00
abstract：:The aim of this study was to determine the pathway of infrahyoid extension of the oropharyngeal abscess considering the anatomy of the fascial spaces by cross-sectional imaging. CT scans and MR images were retrospectively reviewed in ten patients with known infrahyoid extension of oropharyngeal abscesses (eight with a...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300050495
更新日期：1998-01-01 00:00:00
abstract：PURPOSE:To evaluate magnetic resonance imaging (MRI) for diaphragmatic endometriosis diagnosis. MATERIALS AND METHODS:Over a 2-year period, all diaphragmatic MRI performed in the context of diaphragmatic endometriosis were reviewed. Axial and coronal fat-suppressed T1- and T2-weighted sequences were analyzed by two in...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-016-4226-5
更新日期：2016-11-01 00:00:00
abstract：OBJECTIVES:To determine if radiomic features, alone or combined with clinical data, are associated with residual tumour (RT) at surgery, and predict the risk of disease progression within 12 months (PD12) in ovarian cancer (OC) patients. METHODS:This retrospective study enrolled 101 patients according to the following...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5389-z
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVES:At a European Society of Neuroradiology (ESNR) Annual Meeting 2015 workshop, commonalities in practice, current controversies and technical hurdles in glioma MRI were discussed. We aimed to formulate guidance on MRI of glioma and determine its feasibility, by seeking information on glioma imaging practices f...
journal_title：European radiology
pub_type： 杂志文章,多中心研究
doi：10.1007/s00330-018-5314-5
更新日期：2018-08-01 00:00:00
abstract：:Here we report our experience of a neuroprotective adaptation of the technique of CT-guided radiofrequency (RF) ablation of spinal osteoid osteomas. Over 9 years seven patients underwent eight CT-guided RF treatments for osteoid osteoma. CT-guided RF ablation was performed with general anaesthesia. The lesion was heat...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-009-1404-8
更新日期：2009-09-01 00:00:00
abstract：OBJECTIVES:To evaluate the safety and efficacy of balloon-occluded transcatheter arterial chemoembolization (B-TACE) for the treatment of HCC refractory to conventional TACE (C-TACE). METHODS:This single-center retrospective analysis included 60 consecutive patients who underwent B-TACE (mean age, 61.4 years; male:fem...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-020-06911-9
更新日期：2020-10-01 00:00:00
abstract：:The purpose of this study was to analyse the radiation exposure of medical staff from interventional x-ray procedures. Partial-body dose measurements were performed with thermoluminescent dosimeters (TLD) in 39 physicians and nine assistants conducting 73 interventional procedures of nine different types in 14 hospita...
journal_title：European radiology
pub_type： 杂志文章,多中心研究
doi：10.1007/s00330-009-1388-4
更新日期：2009-08-01 00:00:00
abstract：:The purpose of this study was to assess the image quality and diagnostic value of MR urography in detecting abnormalities of the urinary collecting system relevant for the preoperative evaluation of living renal donors. Study subjects were selected from the existing intravenous urography (IVU) reports: 18 consecutive ...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-002-1438-7
更新日期：2002-08-01 00:00:00
abstract：OBJECTIVES:To validate new diagnostic criteria for hepatocellular carcinoma (HCC) on gadoxetic acid-enhanced MR imaging (Gd-EOB-MRI) using hypointensity on the hepatobiliary phase (HBP) as an alternative to washout in combination with ancillary features. METHODS:This retrospective study included 288 patients at high r...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5727-1
更新日期：2019-04-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to evaluate the diagnostic performance of introducing diffusion-weighted imaging (DWI) as a major feature to extracellular agent (ECA)-MRI for diagnosing HCC in comparison with gadoxetic acid (hepatobiliary agent, HBA)-MRI using Liver Imaging Reporting and Data System (LI-RADS) v201...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-020-06753-5
更新日期：2020-07-01 00:00:00
abstract：:Coronary calcium mass percentiles can be derived from electron beam CT as well as from multidetector-row CT of all manufacturers. Coronary calcium mass may serve as a more individualized substitute for age for cardiac risk stratification. The aim was to investigate the potential impact of CT coronary calcium mass quan...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-004-2528-5
更新日期：2005-01-01 00:00:00
abstract：:With the advent of powerful gradient coil systems and high-resolution surface coils, magnetic resonance imaging (MRI) has recently extended its role in the staging of rectal cancer. MRI is superior to endorectal ultrasound, the most widely used staging modality in patients with rectal tumors, in that it visualizes not...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s00330-006-0388-x
更新日期：2007-02-01 00:00:00
abstract：:Spinal vascular malformations are rare diseases that consist of true inborn cavernomas and arteriovenous malformations (including perimedullary fistulae, glomerular and juvenile AVMs) and presumably acquired dural arteriovenous fistulae. This review article gives an overview of the imaging features both on MRI and ang...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s00330-004-2510-2
更新日期：2005-02-01 00:00:00
abstract：:Surrogate markers and biomarkers based on imaging readouts providing predictive information on clinical outcome are of increasing importance in the preclinical and clinical evaluation of novel therapies. They are primarily used in studies designed to establish evidence that the therapeutic principle is valid in a repr...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-007-0619-9
更新日期：2007-10-01 00:00:00
abstract：OBJECTIVES:To assess variability of the average standard uptake value (SUV) computed by varying the number of hottest voxels within an (18)F-fluorodeoxyglucose ((18)F-FDG)-positive lesion. This SUV metric was compared with the maximal SUV (SUV(max): the hottest voxel) and peak SUV (SUV(peak): SUV(max) and its 26 neighb...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-014-3222-x
更新日期：2014-08-01 00:00:00
abstract：OBJECTIVES:To evaluate the outcomes of re-exposure to low-osmolar iodinated contrast medium (LOCM) in patients with a history of moderate-to-severe hypersensitivity reaction (HSR). METHODS:We retrospectively evaluated a cohort comprising all subjects satisfying the following conditions at 11 centres: (1) experienced a...
journal_title：European radiology
pub_type： 杂志文章,多中心研究
doi：10.1007/s00330-016-4682-y
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVES:To evaluate the feasibility, image quality and radiation dose of prospectively ECG-triggered high-pitch coronary CT angiography (CCTA) with 30 mL contrast agent at 70 kVp. METHODS:Fifty-eight patients with suspected coronary artery disease, a body mass index (BMI) of less than 25 kg/m(2), sinus rhythm and a...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-014-3157-2
更新日期：2014-07-01 00:00:00
abstract：OBJECTIVES:To investigate whether the different location of pancreatic adenocarcinoma affects the lobar distribution of metastases to the liver. METHODS:From all patients who underwent multidetector computed tomography (MDCT) examinations for staging of pancreatic adenocarcinoma in the last 4 years we selected 80 pati...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-015-3843-8
更新日期：2016-02-01 00:00:00
abstract：OBJECTIVES:Left ventricular mass (LVM) at cardiac magnetic resonance imaging (CMR) is a frequent end point in clinical trials in nephrology. Trial participants with end stage renal disease (ESRD) may have a greater frequency of incidental findings (IF). We retrospectively investigated prevalence of IF in previous resea...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-016-4288-4
更新日期：2017-01-01 00:00:00
abstract：OBJECTIVE:To investigate the incidence rate, time-to-onset and recovery, MRI morphology and occurrence of insufficiency fractures in radiation-induced changes in the sacrum following pelvic radiotherapy. MATERIAL AND METHODS:410 patients with pelvic malignancies treated with radiotherapy were reviewed. Follow-up was 1...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5325-2
更新日期：2018-08-01 00:00:00
abstract：OBJECTIVES:To analyse the implementation, applicability and accuracy of the pretest probability calculation provided by NICE clinical guideline 95 for decision making about imaging in patients with chest pain of recent onset. METHODS:The definitions for pretest probability calculation in the original Duke clinical sco...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5322-5
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVE:To investigate the prognostic significance of T1 mapping using T1 long and short in hypertrophic cardiomyopathy (HCM) patients. METHODS:A total of 263 consecutive patients with HCM referred for cardiovascular magnetic resonance (CMR) imaging were enrolled in this study. The imaging protocol consisted of cine...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-020-07650-7
更新日期：2021-01-15 00:00:00
abstract：OBJECTIVES:We aimed to evaluate the agreement in the detection of cerebral microbleeds (CMBs) between conventional susceptibility-weighted imaging (SWI) and fast SWI using wave-controlled aliasing in parallel imaging (CAIPI) acceleration. We also scrutinized the diagnostic agreement for intracranial lesions and compare...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-019-06574-1
更新日期：2020-04-01 00:00:00
abstract：:Bilateral tuberculous mastoiditis (TOM) in an immunocompetent child is a very uncommon form of tuberculous infection presentation. This report shows the CT and MR imaging of bilateral tuberculous otomastoiditis consisting of aggressive signs of middle ear and mastoid involvement with bony destruction and periauricular...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-008-1130-7
更新日期：2009-06-01 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
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1007/s00330-014-3261-3
更新日期：2014-09-01 00:00:00
abstract：:Cross-sectional imaging has revolutionised the radiological diagnosis of pleural collections. Not only can the precise location and volume of a pleural effusion be established, but also features specific for the aetiology of the effusion can be demonstrated. Increasingly, radiologists are called upon to perform image-...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s00330-002-1512-1
更新日期：2002-08-01 00:00:00
