Abstract：
:The purpose was to assess changes in lactate content and other brain metabolites under visual stimulation in optical chiasm, optic radiations and occipital cortex using multiple voxel MR spectroscopy (MRS). 1H chemical shift imaging (CSI) examinations of transverse planes centered to include the above structures were performed in four subjects at an echo time of 135 ms. Functional MRI (fMRI) was used to confirm the presence of activity in the visual cortex during the visual stimulation. Spectral maps of optical chiasm were of poor quality due to field disturbances caused by nearby large blood vessels and/or eye movements. The optic radiations and the occipital lobe did not show any significant MR spectral change upon visual stimulation, i.e., the peak areas of inositol, choline, creatine, glutamate and N-acetylaspartate were not affected. Reproducible lactate signals were not observed. fMRI confirmed the presence of strong activations in stimulated visual cortex. Prolonged visual stimulation did not cause significant changes in MR spectra. Any signal observed near the 1.33 ppm resonance frequency of the lactate methyl-group was artifactual, originating from lipid signals from outside the volume of interest (VOI). Previous claims about changes in lactate levels in the visual cortex upon visual stimulation may have been based on such erroneous observations.
journal_name
Eur Radioljournal_title
European radiologyauthors
Boucard CC,Mostert JP,Cornelissen FW,De Keyser J,Oudkerk M,Sijens PEdoi
10.1007/s00330-004-2494-ysubject
Has Abstractpub_date
2005-01-01 00:00:00pages
47-52issue
1eissn
0938-7994issn
1432-1084journal_volume
15pub_type
杂志文章abstract：:The advent of radiologic guidance techniques for percutaneous biopsy has changed the approach to the routine diagnosis of mediastinal lymphoma. The aim of the present study was to evaluate the diagnostic accuracy of CT-guided percutaneous core-needle biopsy (PCNB) in the clinical management of patients with mediastina...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300050991
更新日期：2000-01-01 00:00:00
abstract：:Blunt injury of the extrahepatic bile duct is rare and hence a large series of scientific study of its MRI is difficult to perform. We present the MRI and MR cholangiography of a case of blunt extrahepatic bile duct injury proven at surgery. The diagnosis could be established based on MRI findings of an abrupt taperin...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-001-1296-8
更新日期：2002-10-01 00:00:00
abstract：OBJECTIVES:Olfactory dysfunction in Parkinson's disease is usually prodromal to other symptoms. In this study, we aimed to explore the association of olfactory function with the availabilities of striatal dopamine transporter (DAT) in healthy subjects. METHODS:Data used in the preparation of this article were obtained...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-017-5147-7
更新日期：2018-04-01 00:00:00
abstract：OBJECTIVES:To assess inter-sonographer reproducibility of ultrasound attenuation coefficient (AC), backscatter coefficient (BSC) and shear wave speed (SWS) in adults with known/suspected non-alcoholic fatty liver disease (NAFLD). METHODS:The institutional review board approved this HIPAA-compliant prospective study; i...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5541-9
更新日期：2018-12-01 00:00:00
abstract：:Metastases of the spine occur in the spinal cord, dura extramedullary, epidural space, and vertebral bodies. Imaging modalities can be used to evaluate patient symptoms, screen and detect lesions, assess localization and the compartments involved (extradural, epidural, subdural, and paraspinal), and suggest therapeuti...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s00330-004-2627-3
更新日期：2005-03-01 00:00:00
abstract：:The clinical management of patients with skeletal metastases puts new demands on imaging. The radiological imaging in screening for skeletal metastases entails detection, metastatic site description and radiologically guided biopsy for morphological typing and diagnosis. Regarding sensitivity and the ease in performin...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/BF00187654
更新日期：1996-01-01 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
pub_type： 杂志文章
doi：10.1007/s00330-016-4383-6
更新日期：2017-02-01 00:00:00
abstract：:Globus pallidus involvement is a well-known magnetic resonance (MR) imaging finding of acute kernicterus. However, it is not clear how early the involvement of globus pallidus occurs and whether or not it is seen in every case. Therefore, we aimed to investigate the globus pallidus involvement in 13 neonates with acut...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-004-2502-2
更新日期：2005-06-01 00:00:00
abstract：:The role of diffusion-weighted magnetic resonance imaging (DWI) to differentiate breast lesions in vivo was evaluated. Sixty women (mean age, 53 years) with 81 breast lesions were enrolled. A coronal echo planar imaging (EPI) sequence sensitised to diffusion (b value=1,000 s/mm(2)) was added to standard MR. The mean d...
journal_title：European radiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00330-007-0621-2
更新日期：2007-10-01 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:We wished to determine whether tumor morphology descriptors obtained from pretreatment magnetic resonance images and clinical variables could predict survival for glioblastoma patients. METHODS:A cohort of 404 glioblastoma patients (311 discoveries and 93 validations) was used in the study. Pretreatment vol...
journal_title：European radiology
pub_type： 杂志文章,多中心研究
doi：10.1007/s00330-018-5758-7
更新日期：2019-04-01 00:00:00
abstract：OBJECTIVES:To correlate hepatic and splenic CT perfusion parameters with hepatic venous pressure gradient (HVPG) measurements in patients with cirrhosis. METHODS:Twenty-one patients with cirrhosis (males, 17; females, 4; mean ± SD age, 57 ± 7 years) underwent hepatic and splenic perfusion CT on a 320-detector row volu...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-017-4788-x
更新日期：2017-10-01 00:00:00
abstract：:To assess the effect of the osmolarity for small bowel distension in MRI, ten volunteers ingested at two separate occasions negative oral contrast agents with different quantity and osmolarity: (1) a water solution combined with 2.0% sorbitol and 0.2% locus bean gum (LBG) with a quantity of 1500 ml and an osmolarity o...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-005-2711-3
更新日期：2005-07-01 00:00:00
abstract：OBJECTIVES:To evaluate the safety and efficacy of iopentol 350 mg I/ml (Imagopaque/Ivépaque, Nycomed Imaging AS, Oslo, Norway), a monomeric non-ionic contrast medium for computed tomography, in a large population. To identify predictive factors for patient safety. MATERIALS AND METHODS:One thousand eight hundred and t...
journal_title：European radiology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1007/pl00006874
更新日期：1997-01-01 00:00:00
abstract：:This study was prospectively conducted to evaluate the clinical potential of the advanced breast biopsy instrumentation (ABBI) system as an alternative to needle localization and open surgery in the management of nonpalpable breast lesions (NPBL). One hundred and eighty-six consecutive patients were referred for manag...
journal_title：European radiology
pub_type： 临床试验,杂志文章
doi：10.1007/s003300000736
更新日期：2001-01-01 00:00:00
abstract：OBJECTIVE:As stents for treating intracranial atherosclerotic stenosis may develop in-stent re-stenosis (ISR) in up to 30%, follow-up imaging is mandatory. Residual stenosis (RS) is not rare. We evaluated an optimised Flat Detector CT protocol with intravenous contrast material application (i.v. FD-CTA) for non-invasiv...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-010-1931-3
更新日期：2011-02-01 00:00:00
abstract：:Magnetic resonance colpocystorectography (MR-CCRG) is presented in the evaluation of patients with pelvic-floor disorders. Five healthy volunteers and 44 female patients with isolated or combined visceral descent underwent dynamic MRI and dynamic fluoroscopy (DF). MR-CCRG was performed with the patient in a supine pos...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300050294
更新日期：1997-01-01 00:00:00
abstract：OBJECTIVES:To assess changes in portal and splanchnic arterial haemodynamics in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) using four-dimensional (4D) flow MRI, a non-invasive, non-contrast imaging technique. METHODS:Eleven patients undergoing TIPS implantation were enrolled. K-t GRAPPA a...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-015-3663-x
更新日期：2015-09-01 00:00:00
abstract：:The prevalence of benign focal liver lesions (BFLL) is high both in the general population and in patients with known malignancies. The gray-scale ultrasound (US) technique is usually the first-line imaging modality used in the radiological workup of such lesions, but unfortunately it lacks specificity. Furthermore, D...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-005-2668-2
更新日期：2005-08-01 00:00:00
abstract：OBJECTIVE:To report the results and implications for workflow following introduction of ESUR guidelines to screen for potential renal insufficiency (RI) in private practice with on-site creatinine measurements. METHODS:A total of 1,766 consecutive outpatients scheduled for contrast-enhanced CT (CECT) completed the ESU...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-010-1754-2
更新日期：2010-08-01 00:00:00
abstract：:The peritoneum is a mesothelial lining of the abdominal cavity (parietal) and intraperitoneal viscera (visceral). The cavity contains a small amount of fluid, which circulates from cephalad to caudal to cephalad, influenced by negative pressure under the diaphragm during exhalation, gravity, and bowel peristalsis. Per...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s003300100998
更新日期：2001-01-01 00:00:00
abstract：OBJECTIVE:To retrospectively compare semi-automated and manual volume measurements of malignant liver tumours and inter- and intra-observer variability using commercially available software. METHODS:This study was performed on 60 consecutive patients with untreated liver metastases (30) and HCCs (30), i.e. 92 lesions ...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-010-2013-2
更新日期：2011-05-01 00:00:00
abstract：OBJECTIVE:To compare the performance of synthetic mammography (SM) and digital mammography (DM) with digital breast tomosynthesis (DBT) or alone for the evaluation of microcalcifications. METHODS:This retrospective study includes 198 mammography cases, all with DM, SM, and DBT images, from January to October 2013. Thr...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5585-x
更新日期：2019-01-01 00:00:00
abstract：:Esophageal duplication cyst, Bochdalek's hernia and polysplenia are uncommon congenital anomalies which have not been reported to be associated with each other. We present the radiological aspects of an unusual coexistence of these three congenital anomalies in a 4-month-old girl. ...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300050696
更新日期：1999-01-01 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：:The value of 31P-magnetic resonance spectroscopy (MRS) as a possible tool to distinguish viable from non-viable tissue after myocardial infarction was analysed in humans. Fifteen patients 3 weeks after anterior myocardial infarction were studied with breath-hold cine MRI and 3D-CSI MRS (1.5 T system). 31P-spectra were...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300000316
更新日期：2000-01-01 00:00:00
abstract：OBJECTIVES:Post-imaging mathematical prediction models (MPMs) provide guidance for the management of solid pulmonary nodules by providing a lung cancer risk score from demographic and radiologists-indicated imaging characteristics. We hypothesized calibrating the MPM risk score threshold to a local study cohort would r...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-019-06168-x
更新日期：2019-10-01 00:00:00
abstract：OBJECTIVE:Sufficiently sized studies to determine the value of the iliolumbar ligament (ILL) as an identifier of the L5 vertebra in cases of a lumbosacral transitional vertebra (LSTV) are lacking. METHODS:Seventy-one of 770 patients with LSTV (case group) and 62 of 611 subjects without LSTV with confirmed L5 level wer...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-014-3277-8
更新日期：2014-10-01 00:00:00
abstract：OBJECTIVES:To evaluate a whole body (WB) continuous-table-movement (CTM) MR protocol for the assessment of multiple myeloma (MM) in comparison to a step-by-step WB protocol. METHODS:Eighteen patients with MM were examined at 1.5T using a WB CTM protocol (axial T2-w fs BLADE, T1-w GRE sequence) and a step-by-step WB pr...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-010-1865-9
更新日期：2010-12-01 00:00:00
abstract：OBJECTIVES:To identify dynamic contrast-enhanced (DCE) imaging parameters from MRI, CT and US that are prognostic and predictive in patients with metastatic renal cell cancer (mRCC) receiving sunitinib. METHODS:Thirty-four patients were monitored by DCE imaging on day 0 and 14 of the first course of sunitinib treatmen...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-017-5220-2
更新日期：2018-06-01 00:00:00
