Abstract:
AIM:Breast screening radiologists are under considerable pressure to maximize cancer detection and minimize the number of interval cancers. This study used screening films, previously reported as normal, taken before the development of an interval cancer. The aim was to determine the sensitivity and specificity of the R2 Image Checker System and the responses of users in detecting abnormalities in these previous films. MATERIALS AND METHODS:The first R2 Image Checker System in the U.K. was installed in the Canterbury Assessment Centre for evaluation purposes. System performance was compared with the standard protocol for assessing interval cancers used in the NHS Breast Screening Programme (NHSBSP) Three readers examined the previous films blind before switching on R2 and compared the prompts generated with the location of the subsequent interval cancer. RESULTS:The previous screening films for 104 cases generated 134 R2 prompts on the subsequent cancer side and 109 on the non-cancer side. Readers classified 29 cancers as false-negative or minimal signs and R2 correctly prompted in 15 of these cases (52%). At least one reader rejected the correct prompt in five cases. CONCLUSION:From this preliminary study it appears that R2 overprompts normal areas and underprompts some cancers in these difficult cases. A full multi-centre evaluation is needed to assess the possible contribution of R2 to the NHSBSP.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Garvican L,Field Sdoi
10.1053/crad.2001.0776subject
Has Abstractpub_date
2001-10-01 00:00:00pages
833-7issue
10eissn
0009-9260issn
1365-229Xpii
S0009-9260(01)90776-7journal_volume
56pub_type
杂志文章abstract::The purpose of this article is to review the computed tomography (CT) and histopathological features of uncommon primary neoplasms of the thorax that can manifest clinically malignant features (multiplicity of pulmonary nodules, an invasive nature, and metastases or recurrence after surgery) with little evidence of hi...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2012.03.011
更新日期:2012-11-01 00:00:00
abstract::We present nine cases of this relatively unreported condition affecting the patellar ligament in athletes. A comparison between ultrasound and computed tomography of this lesion, shows that whilst neither modality gives false positives, ultrasound is capable of greater distinction between the histological abnormalitie...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(88)80017-5
更新日期:1988-03-01 00:00:00
abstract::The different methods of classifying paranasal sinus tumours are summarised. Thirty patients with such tumours seen during the last 2 years were noted. All had had plain films and computed tomography (CT) and 16 conventional tomography. The tumours were staged using Lederman's classification after each investigation t...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(82)80054-8
更新日期:1982-03-01 00:00:00
abstract::Conjugated phenobutiodil (Biliodyl) in the small and large bowel can be recognised by its fine, homogeneous appearance. The findings in 41 patients undergoing oral cholecystography with subsequent clinical follow-up are reported. When the gallbladder fails to opacify on oral cholecystography, the presence of conjugate...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(77)80183-9
更新日期:1977-05-01 00:00:00
abstract::Thyroglossal fistulography is poorly documented in the radiological literature. An illustrative case is presented, highlighting the technique employed and the significance of its findings. The taste of contrast medium as it spills over the tongue is a useful additional sign in the successful demonstration of a fistulo...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(05)80017-0
更新日期:1992-04-01 00:00:00
abstract::Patients with leukaemia, on anticoagulant therapy, or with disseminated intravascular coagulation may develop occult pulmonary haemorrhage; it will mimic pulmonary oedema, pulmonary hemosiderosis or opportunistic infections. It can be diagnosed by bronchopulmonary lavage. The radiographic changes are described and the...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(78)80217-7
更新日期:1978-03-01 00:00:00
abstract:AIM:The purpose of this study was to determine the feasibility of echocardiogram (ECG)-gated multi-slice CT angiography (MCTA) in patients with clinical suspicion of acute venous thromboembolism (VTE), to investigate the effect of ECG-gating on cardiac motion artefacts, and to determine the diagnostic reader agreement ...
journal_title:Clinical radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0009-9260(03)00348-9
更新日期:2003-11-01 00:00:00
abstract::Interventional approaches to musculoskeletal tumours have significantly changed over the last several years, and new treatments continue to be developed. All ablative modalities are currently applied to the treatment of bone tumours, including radiofrequency, cryo-, microwave, and laser ablation devices. Indications f...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2017.02.019
更新日期:2017-08-01 00:00:00
abstract:PURPOSE:To determine pre-operative MRI accuracy in assessing local disease extent in recurrent/residual pelvic bowel cancer by comparing MRI assessment and staging examination under anaesthesia (EUA), with laparotomy/histopathological findings. MATERIALS AND METHODS:Twenty-seven consecutive patients with recurrent (n ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1053/crad.2002.0933
更新日期:2002-06-01 00:00:00
abstract:AIM:To compare extended-phase imaging using an extracellular space contrast agent, gadobenate dimeglumine, to imaging with a blood-pool contrast agent, gadofosveset, for magnetic resonance angiography. MATERIALS AND METHODS:A lower-limb magnetic resonance angiography (MRA) protocol (dynamic crural, three-station bolus...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2012.05.017
更新日期:2013-02-01 00:00:00
abstract::A case of granular cell tumour (GCT) of the biliary tree is reported with the first published sonographic images of this tumour. The difficulty in distinguishing this tumour from cholelithiasis is illustrated. ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(05)81753-2
更新日期:1994-07-01 00:00:00
abstract:AIM:To describe the imaging features of inferior mesenteric vein (IMV)-inferior vena cava (IVC) shunts, and to describe a treatment strategy for portosystemic encephalopathy, which can be caused by them. MATERIALS AND METHODS:Between 2000 and 2004, we treated seven patients who had symptomatic IMV-IVC shunts. The resu...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2006.11.014
更新日期:2007-04-01 00:00:00
abstract:AIM:The aim of this study was to examine the spectrum of spinal canal disease in patients with known malignancy using magnetic resonance imaging (MRI). MATERIALS AND METHODS:One hundred and fifty-five patients underwent a total of 159 spinal MRI examinations over a three-year period. Patients were examined using a 1.0...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1053/crad.2000.0547
更新日期:2000-11-01 00:00:00
abstract::The absorption of vitamin B12 and of a synthetic bile acid analogue 75SeHCAT was measured simultaneously in 26 patients presenting with persistent diarrhoea following pelvic irradiation for treatment of carcinoma of the cervix. Four groups were identified, namely patients with isolated bile acid malabsorption, patient...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(85)80059-3
更新日期:1985-05-01 00:00:00
abstract::Duplication of the superficial femoral vein (SFV) is a normal variant seen in 20% of contrast phlebograms. Failure to identify thrombus in one limb of a SFV may lead to inappropriate management and subsequent complications. Colour Doppler imaging (CDI) is now the imaging technique of choice in the diagnosis of a deep ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(96)80055-9
更新日期:1996-09-01 00:00:00
abstract:AIM:To determine the prevalence of radiological anatomy teaching in modern medical curricula. MATERIALS AND METHODS:The present paper details a survey carried out amongst 21 medical schools in the U.K. and Ireland to determine the variability of the inclusion of radiological anatomy in their different curricula. RESU...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1053/crad.2002.1116
更新日期:2002-12-01 00:00:00
abstract:AIM:To test whether a high coronary artery score predicts that the subsequent post-mortem computed tomography (PMCT) with angiography (PMCTA) will diagnose significant coronary artery disease (CAD); to test the diagnostic impact of assuming there is significant CAD based on a high coronary artery calcium (CAC) score al...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2019.06.034
更新日期:2019-12-01 00:00:00
abstract::The retropharyngeal space is a potential route for the spread of infection and malignancy. We present patients with squamous cell carcinoma of the larynx and tongue with superior contiguous spread along the retropharyngeal space resulting in skull base erosion. The fascia defining the retropharyngeal space is attached...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(98)80038-x
更新日期:1998-01-01 00:00:00
abstract::We report two cases demonstrating the presence of gas in the transverse mesocolon following asymptomatic perforation, shown during barium enema examination. The appearances, diagnosis and successful conservative management are described. ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(05)82884-3
更新日期:1994-12-01 00:00:00
abstract::Post-treatment imaging of the neck is complex. It is important to have an understanding of the expected treatment related appearances as well as the possible complications. Common findings after radiation therapy include generalised soft-tissue oedema and thickening of the skin and platysma muscle. There are a number ...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2020.06.011
更新日期:2020-10-01 00:00:00
abstract:AIM:To investigate the frequency, distribution, and nature of incidental extra-mammary findings detected with breast MRI. MATERIALS AND METHODS:Incidental findings were defined as unexpected lesions outside the breast, not previously known or suspected at the time of referral. Five hundred consecutive breast MRI studi...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2015.01.003
更新日期:2015-05-01 00:00:00
abstract:AIM:The purpose of our study was to describe radiological manifestations of tuberculosis in patients with myelodysplastic syndromes. MATERIALS AND METHODS:Chest radiographs and CTs of 12 patients with tuberculosis among 195 consecutive patients with myelodysplastic syndrome, proved by bone marrow biopsy, were reviewed...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1053/crad.2001.0742
更新日期:2002-05-01 00:00:00
abstract::Endovascular mechanical thrombectomy (MT) is reserved for acute ischaemic stroke secondary to large vessel occlusion. The various MT techniques employed in the treatment of hyperacute strokes are constantly evolving with new devices and improvisation of existing technology (Wahlgren, et al 2016). In this review, we de...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2017.10.022
更新日期:2018-05-01 00:00:00
abstract::This report describes a comparison of combination chemotherapy (CHOP) with total body irradiation (TBI) in the management of Stages III and IV Grade 2 non-Hodgkin's lymphoma. This prospective randomised study was carried out by the BNLI between 1974 and 1978. One hundred and fourteen previously untreated patients were...
journal_title:Clinical radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0009-9260(81)80186-9
更新日期:1981-09-01 00:00:00
abstract::A prospective randomised trial was performed to examine the value of ureteric compression in intravenous urography. Calyceal distension improved during the urogram in 68% of kidneys when compression was used, in contrast to an improvement of 43% in patients not receiving compression. In both heavy patients and those w...
journal_title:Clinical radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0009-9260(87)80026-0
更新日期:1987-03-01 00:00:00
abstract::Tuberculous abscess of the liver is rare and delay in diagnosis is common. The case of a 66-year-old Singaporean Chinese female with tuberculous liver abscess is reported. The abscess had an unusual septated ('honeycomb-like') ultrasonographic and computed tomographic appearance and the diagnosis was made with difficu...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(05)80484-2
更新日期:1991-03-01 00:00:00
abstract::Patients with end-stage renal disease on long term dialysis may develop de novo renal cystic disease. We used ultrasound as a primary screening procedure for renal cysts in 71 patients. In seven patients (10%) the native kidneys could not be identified. In 35 patients renal cysts were identified indicating a prevalenc...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(05)81658-7
更新日期:1990-04-01 00:00:00
abstract:AIM:To undertake a pilot study assessing whether tumour heterogeneity evaluated using computed tomography texture analysis (CTTA) has the potential to provide a marker of tumour aggression and prognosis in oesophageal cancer. MATERIALS AND METHODS:In 21 patients, unenhanced CT images of the primary oesophageal lesion ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2011.08.012
更新日期:2012-02-01 00:00:00
abstract::In a review of the cases of testicular tumours treated at the Christie Hospital between 1961 and 1974 there are six cases with spontaneous regression of metastases, which are now reported. In this period, 827 cases of testicular tumour have been treated giving an incidence of spontaneous regression of 0.72%, which is ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(77)80062-7
更新日期:1977-09-01 00:00:00
abstract::Congenital bronchial atresia (CBA) is a rare anomaly that results from a congenital focal obliteration of a proximal segmental or subsegmental bronchus with the normal development of distal structures. The short atretic segment leads to accumulation of mucus within the distal bronchi to form a bronchocoele and underve...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(99)91002-4
更新日期:1999-03-01 00:00:00