Abstract:
:The purpose of our study was to investigate whether quantitative diffusion-weighted images (DWI) were useful for monitoring the therapeutic response of primary bone tumors. We encountered 18 osteogenic and Ewing sarcomas. Magnetic resonance (MR) images were performed in all patients before and after therapy. We measured the apparent diffusion coefficient (ADC) values, contrast-to-noise ratio (CNR), and tumor volume of the bone tumors pre- and posttreatment. We determined change in ADC value, change in CNR on T2-weighted images (T2WI), change in CNR on gadopentetate dimeglumine (Gd)-T1-weighted images (Gd-T1WI), and change in tumor volume. The bone tumors were divided into two groups: group A was comprised of tumors with less than 90% necrosis after treatment and group B of tumors at least with 90%. Changes in ADC value, tumor volume, and CNR were compared between the groups. Change in the ADC value was statistically greater in group B than that in the group A (p = 0.003). There was no significant difference in the changes in CNR on T2WI (p = 0.683), in CNR on Gd-T1WI (p = 0.763), and tumor volume (p = 0.065). The ADC value on DWI is a promising tool for monitoring the therapeutic response of primary bone sarcomas.
journal_name
Eur Radioljournal_title
European radiologyauthors
Hayashida Y,Yakushiji T,Awai K,Katahira K,Nakayama Y,Shimomura O,Kitajima M,Hirai T,Yamashita Y,Mizuta Hdoi
10.1007/s00330-006-0342-ysubject
Has Abstractpub_date
2006-12-01 00:00:00pages
2637-43issue
12eissn
0938-7994issn
1432-1084journal_volume
16pub_type
杂志文章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:OBJECTIVES:To validate a visual rating scale of frontal atrophy with quantitative imaging and study its association with clinical status, APOE ε4, CSF biomarkers, and cognition. METHODS:The AddNeuroMed and ADNI cohorts were combined giving a total of 329 healthy controls, 421 mild cognitive impairment patients, and 28...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4101-9
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:To retrospectively evaluate the diagnostic performance of single-phase dual-energy CT (DECT) with virtual non-contrast CT (VNCT) compared with three-phase CT urography (CTU) in patients with haematuria. METHODS:A total of 296 patients underwent three-phase CTU (NCT at 120 kVp; nephrographic phase and excreto...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4206-9
更新日期:2016-10-01 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::The blood-ocular barrier (BOB) shares similar neuroepithelial origin, microanatomy and functions with the blood-brain barrier. There are many natural (e. g. diabetes, hypertension) or iatrogenic (chemotherapy, retinal photocoagulation) conditions which can cause a BOB breakdown, resulting in visual acuity impairment o...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050121
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVES:To characterize interhemispheric functional and anatomical connectivity and their relationships with impulsive behaviour in codeine-containing cough syrup (CCS)-dependent male adolescents and young adults. METHODS:We compared volumes of corpus callosum (CC) and its five subregion and voxel-mirrored homotopi...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4465-5
更新日期:2017-03-01 00:00:00
abstract::Tumors of the hand and wrist most commonly result from dystrophic lesions and hamartomas. Neoplastic lesions are rare. Imaging modalities are required for their detection and accurate location, careful assessment of the internal structure and borders, evaluation of the relation with surrounding tendons, nerves, and ve...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300000751
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:We compared carotid plaque calcification detection sensitivity and apparent cross-sectional area on CT as a function of CT beam energy using conventional CT techniques and virtual mono-energetic CT images generated from dual-energy acquisitions. METHODS & MATERIALS:Five ex-vivo carotid endarterectomy (CEA) spe...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3523-0
更新日期:2015-05-01 00:00:00
abstract::The purpose of this study was to use cine-MRI during continuous respiration to measure the respiratory lumenal diameter change in the pharynx and at an upper tracheal level. Fifteen non-smokers and 23 chronic obstructive pulmonary disease (COPD) patients with smoking history (median 50 pack-years) were included. Cine-...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-004-2461-7
更新日期:2004-12-01 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::Typical MRI findings for gastro-intestinal stromal tumours (GIST) under treatment with imatinib were evaluated. MRI was performed in 45 patients (25 responders, 20 non-responders) with metastatic or locally advanced, unresectable GIST. Target lesions were selected and re-evaluated after 2, 4, and 6 months of therapy w...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-005-2867-x
更新日期:2005-12-01 00:00:00
abstract::This technical note describes the use of dynamic MRI in the diagnosis of groin herniations. A review of the anatomy of the groin is presented and 4 representative cases are described. This paper indicates that dynamic MRI can be used to confirm the diagnosis in patients with clinically evident groin herniations. ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050377
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVES:To determine whether there is a difference in frequency and clinical relevance of incidental findings detected by total-body computed tomography scanning (TBCT) compared to those by the standard work-up (STWU) with selective computed tomography (CT) scanning. METHODS:Trauma patients from five trauma centres...
journal_title:European radiology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00330-016-4598-6
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVES:To assess the accuracy of MRI-derived liver surface nodularity (LSN) score for staging of hepatic fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). METHODS:Forty-seven patients with clinicopathological diagnosis of NAFLD who underwent 1.5-T liver MRI within 12 months of liver biopsy were ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07114-y
更新日期:2021-01-01 00:00:00
abstract::Non-enhanced two-dimensional (2D) time-of-flight (TOF) MRA is well established for imaging of the deep venous system. However, based on the acquisition of multiple axial images, it can be time-consuming and often fails to delineate small superficial and perforating veins. The presented low-dose, direct-contrast-inject...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300000586
更新日期:2001-01-01 00:00:00
abstract::We report the case of a 1.5-year-old girl with transient protein-losing gastropathy with hypertrophic gastric folds (PLGH). The diagnosis of PLGH was made by abdominal ultrasound (US) and not by an upper gastrointestinal (UGI) study as reported in many previous publications. Real-time compound ultrasound imaging showe...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-003-2071-9
更新日期:2003-12-01 00:00:00
abstract::Inflammatory myofibroblastic tumour (IMFT) is a distinct entity under the group of inflammatory pseudotumours. Sometimes these pseudotumours can have an aggressive appearance on imaging, which makes it indistinguishable from other malignant neoplasms. We present a case of IMFT of the bladder in a child. ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-009-1646-5
更新日期:2010-08-01 00:00:00
abstract:OBJECTIVES:To comprehensively and quantitatively analyse flow and vorticity in the right heart of patients after repair of tetralogy of Fallot (rTOF) compared with healthy volunteers. METHODS:Time-resolved flow-sensitive 4D MRI was acquired in 24 rTOF patients and 12 volunteers. Qualitative flow evaluation was based o...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4186-1
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:To develop a visual rating scale for posterior atrophy (PA) assessment and to analyse whether this scale aids in the discrimination between Alzheimer's disease (AD) and other dementias. METHODS:Magnetic resonance imaging of 118 memory clinic patients were analysed for PA (range 0-3), medial temporal lobe atr...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-011-2205-4
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To update quality standards for CT colonography based on consensus among opinion leaders within the European Society of Gastrointestinal and Abdominal Radiology (ESGAR). MATERIAL AND METHODS:A multinational European panel of nine members of the ESGAR CT colonography Working Group (representing six EU countri...
journal_title:European radiology
pub_type: 杂志文章,实务指引
doi:10.1007/s00330-012-2632-x
更新日期:2013-03-01 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:OBJECTIVE:To assess the heterogeneity of liver fat deposition with MR of the liver in type-2 diabetic (T2D) patients. METHODS:We enrolled 121 consecutive T2D patients. The reference standard was 3.0-T (1)H-MR spectroscopy. Hepatic steatosis was defined as liver fat content (LFC) ≥5.56 %. A triple-echo gradient-echo se...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2468-4
更新日期:2012-10-01 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::The aim of this study was to evaluate inter- and intra-observer reproducibility when making electronic caliper linear tumor measurements on picture archiving and communications systems (PACS) and compare them with linear measurements obtained from circumferential tracing of tumor perimeter. Three radiologists measured...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-003-2027-0
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVES:To study linear and volumetric adrenal measurements, their reproducibility, and correlations between total adrenal volume (TAV) and adrenal micronodularity, age, gender, body mass index (BMI), visceral (VAAT) and subcutaneous adipose tissue volume (SAAT), presence of diabetes, chronic alcoholic abuse and chr...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4063-y
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:Coronary angiography using multidetector computed tomography (MDCT) allows non-invasive assessment of non-calcified, calcified and mixed plaques. Progression of coronary plaques may be influenced by statins. METHODS:Sixty-three consecutive patients underwent MDCT as a follow-up to their original CT angiograp...
journal_title:European radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00330-010-1880-x
更新日期:2010-12-01 00:00:00
abstract::The imaging findings that ultrasonographically differentiate focal acute pancreatitis (FAP) from a malignant lesion of the pancreas are described. Focal acute pancreatitis is ultrasonographically (US) characterized as a hypoechoic, homogeneous, localized, subsegmental, non-expansive and diffusely demarcated lesion loc...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050756
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVES:To investigate the morphological classification of intraductal papillary neoplasm of the bile duct (IPNB), as well as morphological differences between IPNB without mucin secretion (IPNB-NM) and IPNB with mucin secretion (IPMN-B). METHODS:Eighty-one patients with IPNB were retrospectively analysed. Imaging ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-017-5123-2
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVES:Modern endovascular treatment of unruptured intracranial aneurysms (UIAs) demands for observance of diagnostic reference levels (DRLs). The national DRL (250 Gy cm2) is only defined for coiling. We provide dosimetric data for the following procedures: coiling, flow diverter (FD), Woven EndoBridge (WEB), comb...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-06777-x
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVES:The study aims were to evaluate: (1) whether a short-protocol (SP) MRI for the surveillance of pancreatic cystic neoplasms (PCN) provides equivalent clinical information as a comprehensive-protocol (CP), and (2) the cost reduction from substituting CP with SP for patient surveillance. METHODS:This retrospec...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4377-4
更新日期:2017-01-01 00:00:00