Abstract:
OBJECTIVES:To evaluate the accuracy of diagnoses of COVID-19 based on chest CT as well as inter-observer agreement between teleradiologists during on-call duty and senior radiologists in suspected COVID-19 patients. MATERIALS AND METHODS:From March 13, 2020, to April 14, 2020, consecutive suspected COVID-19 adult patients who underwent both an RT-PCR test and chest CT from 15 hospitals were included in this prospective study. Chest CTs were immediately interpreted by the on-call teleradiologist and were systematically blind reviewed by a senior radiologist. Readings were categorised using a five-point scale: (1) normal; (2) non-infectious findings; (3) infectious findings but not consistent with COVID-19 infection; (4) consistent with COVID-19 infection; and (5) typical appearance of COVID-19 infection. The diagnostic accuracy of chest CT and inter-observer agreement using the kappa coefficient were evaluated over the study period. RESULTS:In total, 513 patients were enrolled, of whom 244/513 (47.6%) tested positive for RT-PCR. First readings were scored 4 or 5 in 225/244 (92%) RT-PCR+ patients, and between 1 and 3 in 201/269 (74.7%) RT-PCR- patients. The data were highly consistent (weighted kappa = 0.87) and correlated with RT-PCR (p < 0.001, AUC1st-reading = 0.89, AUC2nd-reading = 0.93). The negative predictive value for scores of 4 or 5 was 0.91-0.92, and the PPV for a score of 5 was 0.89-0.96 at the first and second readings, respectively. Diagnostic accuracy was consistent over the study period, irrespective of a variable prevalence rate. CONCLUSION:Chest CT demonstrated high diagnostic accuracy with strong inter-observer agreement between on-call teleradiologists with varying degrees of experience and senior radiologists over the study period. KEY POINTS:• The accuracy of readings by on-call teleradiologists, relative to second readings by senior radiologists, demonstrated a sensitivity of 0.75-0.79, specificity of 0.92-0.97, NPV of 0.80-0.83, and PPV of 0.89-0.96, based on "typical appearance," as predictive of RT-PCR+. • Inter-observer agreement between the first reading in the emergency setting and the second reading by the senior emergency teleradiologist was excellent (weighted kappa = 0.87).
journal_name
Eur Radioljournal_title
European radiologyauthors
Nivet H,Crombé A,Schuster P,Ayoub T,Pourriol L,Favard N,Chazot A,Alonzo-Lacroix F,Youssof E,Ben Cheikh A,Balique J,Porta B,Petitpierre F,Bouquet G,Mastier C,Bratan F,Bergerot JF,Thomson V,Banaste N,Gorincour Gdoi
10.1007/s00330-020-07345-zsubject
Has Abstractpub_date
2020-10-29 00:00:00eissn
0938-7994issn
1432-1084pii
10.1007/s00330-020-07345-zpub_type
杂志文章abstract:OBJECTIVES:To evaluate tomosynthesis compared with 2D-mammography in cancer detection and recalls in a screening-programme, and assess performing synthesized instead of 2D, and compare double reading of 2D with single reading of tomosynthesis. METHODS:Women (age 50-69 years) participating in the screening-programme we...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-017-5219-8
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVES:To study the effect of patient size, body region and modulation strength on tube current and image quality on CT examinations that use automatic tube current modulation (ATCM). METHODS:Ten physical anthropomorphic phantoms that simulate an individual as neonate, 1-, 5-, 10-year-old and adult at various body...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3309-4
更新日期:2014-10-01 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::The objective of this paper is to quantify the fatty degeneration (infiltration) of rotator cuff muscles with a new spectroscopic FLASH (SPLASH) sequence. Before planned surgery (reconstruction or muscle transfer), 20 patients (13 men, 7 women; 35-75 years) with different stages of rotator cuff disease underwent an MR...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-004-2410-5
更新日期:2004-12-01 00:00:00
abstract:OBJECTIVES:To report the frequencies of potentially relevant incidental findings in the general adult population and to develop a protocol for their management in whole-body magnetic resonance imaging (wb-MRI). METHODS:A total of 2,500 adult subjects (1,271 women, 1,229 men; mean age 53 years) from the population-base...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2636-6
更新日期:2013-03-01 00:00:00
abstract::The aim of this study was to evaluate feasibility, safety, and effectiveness of radio-frequency (RF) thermal ablation, performed by using a cooled-tip electrode needle, in the treatment of liver metastases. Twenty-nine patients (20 males and 9 females; age range 43-77 years) with one to four hepatic metastases 1.1-4.8...
journal_title:European radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s003300050536
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study is to describe a new method to quickly estimate left atrial enlargement (LAE) on Computed Tomography. METHODS:Left atrial (LA) volume was assessed with a 3D-threshold Hounsfield unit detection technique, including left atrial appendage and excluding pulmonary venous confluence, in 2...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-017-5041-3
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVES:To assess epiphyseal growth plate closure of the knee for forensic age estimation using an ultrasound (US)-based method and to compare the findings with MRI. METHODS:Thirty-three healthy male individuals (age, 14.4-19.3 years) were prospectively evaluated for epiphyseal growth plate closure of the right kne...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07343-1
更新日期:2020-10-14 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::The purpose of this study was to compare the diagnostic efficacy of double-dose 1.0-M gadobutrol with that of standard-dose 0.5-M gadopentetate dimeglumine for revealing small hypervascular hepatocellular carcinomas (HCCs). Twenty-three patients with 37 HCCs (mean size: 1.2 cm) that were diagnosed by histology (n = 13...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-007-0630-1
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to test the feasibility of time-resolved computed tomography angiography (TR-CTA) for use in the lower leg. METHODS:Fifty-nine patients with suspected peripheral arterial occlusive disease were examined with a standard CTA (S-CTA) of the lower run-off and with an additional TR-CTA o...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-010-1861-0
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVES:Endovascular embolization is a valid option for the management of visceral artery aneurysms. Imaging is crucial for providing anatomical assessments, but preoperative non-invasive investigations may not be exhaustive. The aim of this work is to present preliminary experience with the use of three-dimensional...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3820-2
更新日期:2016-01-01 00:00:00
abstract::The purpose of the study was to evaluate the CT abnormalities of airways and lung parenchyma in asthmatic patients and to assess inter- and intraobserver variability for these abnormalities. The CT scans of 50 asthmatic patients and 10 healthy volunteers were assessed independently by four independent chest radiologis...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/BF00181147
更新日期:1996-01-01 00:00:00
abstract::The aim of this prospective study was to evaluate MRI, including MR angiography (MRA), in the preoperative assessment of the resectability of suspected malignancy of the pancreas. A total of 17 patients with suspected pancreatic carcinoma and planned surgery were investigated with conventional angiography, ultrasonogr...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/BF02742919
更新日期:1997-01-01 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 evaluate thread sign of biliary intraductal papillary mucinous neoplasm (B-IPMN) on magnetic resonance imaging (MRI). METHODS:Thread sign was defined as intraductal linear or curvilinear hypointense striations. Two radiologists independently evaluated the presence and location of thread sign on MR cholan...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4158-5
更新日期:2016-09-01 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: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::To determine whether neutral contrast agents with water-equivalent intraluminal attenuation can improve delineation of the bowel wall and increase overall image quality for a non-selected patient population, a neutral oral contrast agent (3% mannitol) was administered to 100 patients referred for abdominal multidetect...
journal_title:European radiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00330-008-0958-1
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVES:To investigate if brain gamma-aminobutyric acid (GABA) levels in patients with relapsing-remitting multiple sclerosis (RRMS) are abnormal compared with healthy controls, and their relationship to cognitive function in RRMS. METHODS:Twenty-eight RRMS patients and twenty-six healthy controls underwent magneti...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-017-5064-9
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the diagnostic performance of reduced-dose CT for suspected appendicitis. METHODS:A systematic search of the MEDLINE and EMBASE databases was carried out through to 10 January 2017. Studies evaluating the diagnostic performance of reduced-dose CT for suspected appendicitis in paediatric and adult...
journal_title:European radiology
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00330-017-5231-z
更新日期:2018-06-01 00:00:00
abstract::An unusual case is reported of a soft tissue mass in the lower extremity, without bone involvement, in an 85-year-old woman; the histopathological diagnosis was Burkitt's lymphoma. Pertinent clinical history, histological examination, and imaging procedures allowed early diagnosis. To our knowledge, the radiological f...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050605
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:To review the diagnostic performance of MRI for detection of parametrial invasion (PMI) in cervical cancer patients. METHODS:MEDLINE and EMBASE databases were searched for studies providing diagnostic performance of MRI for detecting PMI in patients with cervical cancer. Studies published between 2012 and 20...
journal_title:European radiology
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00330-017-4958-x
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::A new technique is presented for retrograde urethrography (RGU) using a plastic adjustable clamp. The procedure was performed in 36 patients with suspected urethral stenosis. Mean age was 55.3 years. The device and the procedure are described. All the radiologic examinations of the urethra were carried out successfull...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1662-1
更新日期:2003-06-01 00:00:00
abstract::One of the recognised complications of catheter ablation is pulmonary venous stenosis. The aim of this study was to compare two methods of evaluation of pulmonary venous diameter for follow-up assessment of the above complication: (1) a linear approach evaluating two main diameters of the vein, (2) semiautomatically m...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-006-0358-3
更新日期:2006-12-01 00:00:00
abstract:OBJECTIVES:To implement, examine, and compare three multichannel transmit/receive coil configurations for cardiovascular MR (CMR) at 7T. METHODS:Three radiofrequency transmit-receive (TX/RX) coils with 4-, 8-, and 16-coil elements were used. Ten healthy volunteers (seven males, age 28 ± 4 years) underwent CMR at 7T. F...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2487-1
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVES:We aim to compare the diagnostic performance to assess thyroid nodules and reliability for recommending fine needle aspiration biopsy (FNAB) between American College of Radiology thyroid image reporting and data system (ACR TI-RADS) and American Thyroid Association (ATA) guidelines. METHODS:In total, this r...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5992-z
更新日期:2019-09-01 00:00:00
abstract::The aim of this study was to compare our computer-aided report writing system to standard techniques. A computer-aided reporting system for reporting on chest X-rays was developed and linked with a UNIX-based radiology information system. The reporting system consists of different text modules which can be composed to...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050505
更新日期:1998-01-01 00:00:00
abstract::The aim of our study was to assess whether contrast-enhanced CT colonography is a feasible alternative to both conventional colonoscopy and liver ultrasonography in the follow-up program of colorectal cancer patients. Thirty-five patients, surgically treated for colorectal cancer, underwent a follow-up program that in...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1696-4
更新日期:2003-04-01 00:00:00