Abstract:
:The aim of this study was to analyze pulmonary embolism (PE) occurrence and retrospective clinical outcome in patients with clinically suspected acute PE and a negative spiral CT angiography (SCTA) of the pulmonary arteries. Within a 35-month period, 485 consecutive patients with clinical symptoms of acute PE underwent SCTA of the pulmonary arteries. Patients with a negative SCTA and without anticoagulation treatment were followed-up and formed the study group. Patient outcome and recurrence of PE was evaluated retrospectively during a period of 6 months after the initial SCTA, and included a review of computerized patient records, and interviews with physicians and patients. Patients were asked to fill out a questionnaire concerning all relevant questions about their medical history and clinical course during the follow-up period. Special attention was focused on symptoms indicating recurrent PE, as well as later confirmation and therapy of PE. Of the 485 patients, 325 patients (67%) had a negative scan, 134 (27.6%) had radiological signs of PE, and 26 (5.4%) had an indeterminant result. Of 325 patients with a negative scan, 269 (83%) were available for follow-up. The main reasons for loss to follow-up were change of address, name, or phone number, or non-resident patients who left abroad. Of 269 patients available for follow-up, 49 patients (18.2% of 269) received anticoagulant treatment because of prior or recent deep venous thrombosis (32.6%) or a history of PE (34.7%), cardiovascular disease (18.4%), high clinical probability (8.2%), positive ventilation-perfusion scan (4.2%), and elevated D-dimer test (2%). The remaining 220 patients, who did not receive anticoagulant medication, formed the study group. Of this study group, 1 patient died from myocardial infarction 6 weeks after the initial SCTA, and the postmortem examination also detected multiple peripheral emboli in both lungs ( p=0.45%; 0.01-2.5, 95% confidence interval). The PE did not occur in any other patient. In patients with suspected PE and negative SCTA without anticoagulant therapy, the risk of recurrent PE in this study was less than 1% and similar to that in patients after a negative pulmonary angiogram. Therefore, we conclude that patients can be managed safely without anticoagulation therapy; however, this approach may not be appropriate for critically ill patients and those with persistent high clinical suspicion of acute PE.
journal_name
Eur Radioljournal_title
European radiologyauthors
Krestan CR,Klein N,Fleischmann D,Kaneider A,Novotny C,Kreuzer S,Riedl C,Minar E,Janata K,Herold CJdoi
10.1007/s00330-003-2016-3subject
Has Abstractpub_date
2004-01-01 00:00:00pages
93-8issue
1eissn
0938-7994issn
1432-1084journal_volume
14pub_type
杂志文章abstract::Testicular microlithiasis (TM) is an uncommon condition characterized by calcium deposits within the seminiferous tubules. On ultrasound (US), it is seen as multiple, uniform, nonshadowing echogenic foci in the testis. Although its true prevalence in the general population is still unknown, reported prevalences range ...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-003-2014-5
更新日期:2003-12-01 00:00:00
abstract:OBJECTIVES:Duchenne muscular dystrophy (DMD) is the most common and severe dystrophinopathy. DMD carriers rarely present with clinical symptoms, but may suffer from cardiac involvement. Because echocardiographic findings are inconsistent and cardiac magnetic resonance imaging (CMRI) data are limited, this study sought ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3694-3
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVES:To describe the technique and report on our initial experience with the use of intrahepatic dynamic contrast magnetic resonance lymphangiography (IH-DCMRL) for evaluation of the lymphatics in patients with hepatic lymphatic flow disorders. METHODS:This is a retrospective review of the imaging and clinical f...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06112-z
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:To assess the discrepancy rate for the interpretation of abdominal and pelvic computed tomography (CT) examinations among experienced radiologists. METHODS:Ninety abdominal and pelvic CT examinations reported by three experienced radiologists who specialize in abdominal imaging were randomly selected from th...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-010-1763-1
更新日期:2010-08-01 00:00:00
abstract::Mammography is a branch of radiology which could benefit greatly from the assimilation of digital imaging technologies. Computerized enhancement techniques could be used to ensure optimum presentation of all clinical images. Beyond this it will facilitate powerful new clinical resources such as computer-assisted diagn...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300050228
更新日期:1997-01-01 00:00:00
abstract::Visceral artery pseudoaneurysms are often treated surgically or by transcatheter embolisation. We report a case of a pseudoaneurysm in a patient with chronic pancreatitis, which was successfully occluded by percutaneous injection of thrombin into the pseudoaneurysmal sac as a first-line management. ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-003-1836-5
更新日期:2003-12-01 00:00:00
abstract:OBJECTIVES:To determine meniscal extrusion and cartilage coverage on magnetic resonance (MR) images and factors associated with these parameters in knees of middle-aged and elderly persons free from radiographic tibiofemoral osteoarthritis (OA). METHODS:Seven hundred eighteen persons, free of radiographic tibiofemoral...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5741-3
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVES:To implement a novel voxel-based technique to identify statistically significant local cartilage deformation and analyze in-vivo topographic knee cartilage deformation patterns using a voxel-based thickness map approach for high-flexion postures. METHODS:Sagittal 3T 3D-T1w-FLASH-WE-sequences of 10 healthy k...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3545-7
更新日期:2015-06-01 00:00:00
abstract::Because of its sensitivity and high tissue contrast, magnetic resonance imaging (MRI) is the technique of choice for structural imaging in epilepsy. In this review the effect of using optimised scanning protocols and the use of high field MR systems on detection sensitivity is discussed. Also, the clinical relevance o...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-007-0710-2
更新日期:2008-01-01 00:00:00
abstract:UNLABELLED:This paper summarizes information about breast MRI to be provided to women and referring physicians. After listing contraindications, procedure details are described, stressing the need for correct scheduling and not moving during the examination. The structured report including BI-RADS® categories and furth...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-015-3807-z
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:The aim of our study was to evaluate the tumour volume doubling time (TVDT) of molecular breast cancer subtypes by serial ultrasound (US). METHODS:Sixty-six patients (mean age, 50 years; range, 29-78 years) with invasive breast cancer underwent initial and follow-up breast US examinations (at least three mo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3256-0
更新日期:2014-09-01 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: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:OBJECTIVES:We aimed to estimate the prevalence of combined pulmonary fibrosis and emphysema (CPFE) and describe the follow-up CT results of CPFE in asymptomatic smokers. METHODS:This study was retrospective, and approved by an institutional review board. CT images of 2,016 current or previous male smokers who underwen...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3617-3
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:To determine the possible influence of segmentation margin on each step (feature reproducibility, selection, and classification) of the machine learning (ML)-based high-dimensional quantitative computed tomography (CT) texture analysis (qCT-TA) of renal clear cell carcinomas (RcCCs). MATERIALS AND METHODS:Fo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-6003-8
更新日期:2019-09-01 00:00:00
abstract:OBJECTIVES:To explore the role of dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI), using semiquantitative and quantitative parameters, and diffusion-weighted (DW) MRI in differentiating benign from malignant small, non-palpable solid testicular tumours. METHODS:We calculated the following DCE-MRI para...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-017-5013-7
更新日期:2018-02-01 00:00:00
abstract:INTRODUCTION:Safe practice and safety culture are important issues in outpatient diagnostic imaging services. As questionnaires assessing safety culture through the measurement of safety climate in this setting are not yet available, the present study aimed to develop and validate such an instrument. MATERIALS AND MET...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5646-1
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:To evaluate a deep convolutional neural network (dCNN) for detection, highlighting, and classification of ultrasound (US) breast lesions mimicking human decision-making according to the Breast Imaging Reporting and Data System (BI-RADS). METHODS AND MATERIALS:One thousand nineteen breast ultrasound images f...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06118-7
更新日期:2019-10-01 00:00:00
abstract::At present, medical applications applying World Wide Web (WWW) technology are mainly used to view static images and to retrieve some information. The Java platform is a relative new way of computing, especially designed for network computing and distributed applications which enables interactive connection between use...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300000432
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:To investigate the diagnostic performance of reduced-dose CT with a hybrid iterative reconstruction (IR) algorithm for the detection of hypervascular liver lesions. METHODS:Thirty liver phantoms with or without simulated hypervascular lesions were scanned with a 320-slice CT scanner with control-dose (40 mA...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4687-6
更新日期:2017-07-01 00:00:00
abstract::The ancient Egyptian mummy Paï-es-tjau-em-aui-nu, now on exhibition in the Rheinische Landesmuseum in Trier, Germany, was examined by conventional X-ray radiography, computed tomography, and digital fluoroscopy. In addition, some tissues were biopsied for further histologic identification. Along with some representati...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-001-1182-4
更新日期:2002-07-01 00:00:00
abstract::Axillary management in patients with breast cancer has become much less invasive with the introduction of sentinel lymph node biopsy (SLNB). However, over 70 % of SLNBs are negative, questioning the generic use of this invasive procedure. Emerging evidence indicates that breast cancer patients with a low axillary burd...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-013-3009-5
更新日期:2014-02-01 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:This tertiary care experience examines the utility of magnetic resonance neurography (MRN) in the management of peripheral trigeminal neuropathies. MATERIALS AND METHODS:Seventeen patients with clinically suspected peripheral trigeminal neuropathies (inferior alveolar nerve and lingual nerve) were imaged uni...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4182-5
更新日期:2016-10-01 00:00:00
abstract::Our purpose was to assess the effect of computer-aided detection (CAD) on lesion detection as a second reader in computed tomographic colonography, and to compare the influence of CAD on the performance of readers with different levels of expertise. Fifty-two CT colonography patient data-sets (37 patients: 55 endoscop...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-007-0608-z
更新日期:2007-10-01 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:OBJECTIVE:To assess the relationship between MRI-derived changes in whole-brain and ventricular volume with change in cognitive scores in Alzheimer's disease (AD), mild cognitive impairment (MCI) and control subjects. MATERIAL AND METHODS:In total 131 control, 231 MCI and 99 AD subjects from the Alzheimer's Disease Ne...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-009-1581-5
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVES:We see a high incidence of plunging ranulas, particularly in Maori and Polynesian populations. We have investigated the usefulness of ultrasound in the diagnosis and management of plunging ranulas and present our findings. METHODS:Thirty-three new cases were examined over 4 years (June 2004 to October 2008)...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-009-1666-1
更新日期:2010-06-01 00:00:00
abstract::An electromagnetic-based tracking and navigation system was evaluated for interventional radiology. The electromagnetic tracking system (CAPPA IRAD EMT, CASinnovations, Erlangen, Germany) was used for real-time monitoring of punctures of the lumbar facet joints and intervertebral disks in a spine phantom, three pig ca...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-008-1227-z
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVES:This study was conducted in order to establish the joint Society of Abdominal Radiology (SAR) and European Society of Urogenital Radiology (ESUR) guidelines on placenta accreta spectrum (PAS) disorders and propose strategies to standardize image acquisition, interpretation, and reporting for this condition w...
journal_title:European radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00330-019-06617-7
更新日期:2020-05-01 00:00:00