Abstract：
:Solid-state, digital radiography (DR) detectors, designed specifically for standard projection radiography, emerged just before the turn of the millennium. This new generation of digital image detector comprises a thin layer of x-ray absorptive material combined with an electronic active matrix array fabricated in a thin film of hydrogenated amorphous silicon (a-Si:H). DR detectors can offer both efficient (low-dose) x-ray image acquisition plus on-line readout of the latent image as electronic data. To date, solid-state, flat-panel, DR detectors have come in two principal designs, the indirect-conversion (x-ray scintillator-based) and the direct-conversion (x-ray photoconductor-based) types. This review describes the underlying principles and enabling technologies exploited by these designs of detector, and evaluates their physical imaging characteristics, comparing performance both against each other and computed radiography (CR). In standard projection radiography indirect conversion DR detectors currently offer superior physical image quality and dose efficiency compared with direct conversion DR and modern point-scan CR. These conclusions have been confirmed in the findings of clinical evaluations of DR detectors. Future trends in solid-state DR detector technologies are also briefly considered. Salient innovations include WiFi-enabled, portable DR detectors, improvements in x-ray absorber layers and developments in alternative electronic media to a-Si:H.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Cowen AR,Kengyelics SM,Davies AGdoi
10.1016/j.crad.2007.10.014subject
Has Abstractpub_date
2008-05-01 00:00:00pages
487-98issue
5eissn
0009-9260issn
1365-229Xpii
S0009-9260(07)00470-9journal_volume
63pub_type
杂志文章,评审abstract：:18F-sodium fluoride (NaF) is a PET bone imaging agent and is commonly used in imaging patients with cancer; however, similar to technetium-99m medronic acid (99mTc-MDP), it can be useful in the evaluation of benign bone and joint conditions. NaF is an excellent bone-seeking agent with high bone uptake due to rapid sin...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2018.09.007
更新日期：2019-02-01 00:00:00
abstract：OBJECTIVE:To report the computed tomography (CT) features of afferent loop syndrome which is often clinically unsuspected. MATERIALS AND METHODS:The CT studies of five patients with afferent loop syndrome were reviewed. These patients had undergone gastroenterostomy and other surgical procedures, for malignant neoplas...
journal_title：Clinical radiology
pub_type： 杂志文章,多中心研究
doi：
更新日期：2002-09-01 00:00:00
abstract：:The commonest causes of nasal obstruction are rhinitis and chronic rhinosinusitis, which affect up to 30% and 14% of the adult population, respectively. The global financial burden is huge, estimated at $5 billion for rhinitis and $8.6 billion for chronic rhinosinusitis per annum in the USA. On referral for imaging, c...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2019.07.027
更新日期：2020-09-01 00:00:00
abstract：AIM:To demonstrate the detailed imaging characteristics of early tuberculous meningitis (TBM) and changes over time on standard gadolinium-enhanced, T1-weighted magnetic resonance imaging (MRI) images. MATERIALS AND METHODS:Contrast-enhanced, T1-weighted, spin-echo MRI images of 26 patients with early TBM were evaluat...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2007.06.001
更新日期：2007-12-01 00:00:00
abstract：AIM:To compare diffusion-weighted imaging (DWI) and non-DWI magnetic resonance imaging (MRI), proton MR spectroscopy (1H-MRS), and clinical biomarkers for prediction of 2 year developmental outcome in term infants with perinatal hypoxic-ischaemic encephalopathy (HIE). MATERIALS AND METHODS:Nineteen infants ≥36 weeks g...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2013.09.001
更新日期：2014-01-01 00:00:00
abstract：:Variations of normal development and benign incidental anomalies are frequently observed on diagnostic neuroimaging. It is important these are recognised for what they are, as misinterpretation may result in unnecessary further investigation, follow-up imaging and anxiety. In this article, we review benign intracrania...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2017.06.118
更新日期：2017-10-01 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：:111Indium (111In) WBC scintigraphy is an accurate method of assessing the extent of inflammatory bowel disease. A prospective study was performed to determine the correlation of ultrasound scanning with 111In WBC scintigraphy in the assessment of inflammatory bowel disease. Eighty-three indium and ultrasound scans wer...
journal_title：Clinical radiology
pub_type： 临床试验,杂志文章
doi：10.1016/s0009-9260(05)80896-7
更新日期：1990-12-01 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 correlate CT morphological features and histopathological findings of adenosquamous carcinoma of the lung. MATERIALS AND METHODS:In all, 29 patients underwent contrast-enhanced CT of an adenosquamous carcinoma of the lung, followed by resection of the cancer. Correlations between CT morphological and histopatho...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2004.08.014
更新日期：2005-03-01 00:00:00
abstract：:Eighty infants have been treated for neonatal necrotising enterocolitis within a period of five years. Twenty-five per cent developed strictures of the small or large intestine. Four cases of atresia including two with multiple cyst formation were seen. Four patients developed severe malabsorption requiring hyperalime...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(79)80036-7
更新日期：1979-01-01 00:00:00
abstract：AIM:To explore possible correlations between tumour apparent diffusion coefficient (ADC), morphological tumour volume, and clinical and histological characteristics in endometrial carcinomas and to evaluate interobserver agreement for preoperative staging by MRI and for ADC measurements. MATERIALS AND METHODS:Preopera...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2014.12.016
更新日期：2015-05-01 00:00:00
abstract：:Three patients with late-onset Bochdalek's hernia are presented. All three had obstruction of the herniated bowel and, in two patients, this was complicated by strangulation and necrosis. The spectrum of roentgenographic manifestation included obvious findings of bowel in the chest in one patient; in another, the find...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(83)80327-4
更新日期：1983-05-01 00:00:00
abstract：AIM:To evaluate the efficacy and safety of transarterial embolisation (TAE), used to treat congenital renal arteriovenous malformations (CRAVMs). MATERIALS AND METHODS:The medical records were searched retrospectively to identify patients who underwent TAE to treat CRAVM from January 2003 to August 2015. Patient demog...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2017.07.008
更新日期：2017-12-01 00:00:00
abstract：:Non-tuberculous psoas abscess is associated with a wide variety of conditions in addition to its well known association with infection in the lumbar spine. Computed tomography (CT) enables the diagnosis to be made at a relatively early stage when classical physical signs may be absent. Percutaneous drainage under CT c...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(86)80330-0
更新日期：1986-05-01 00:00:00
abstract：:The importance of optimal visualisation by the use of multiple projections in lower limb angiography is stressed. This is particularly relevant to the safe and effective performance of percutaneous angioplasty; illustrative examples are presented. ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(85)80083-0
更新日期：1985-05-01 00:00:00
abstract：:Radiological imaging is progressing towards an all-digital future, across the spectrum of medical imaging techniques. Computed radiography (CR) has provided a ready pathway from screen film to digital radiography and a convenient entry point to PACS. This review briefly revisits the principles of modern CR systems and...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2007.07.009
更新日期：2007-12-01 00:00:00
abstract：:Cytomegalovirus (CMV) is the most commonly transmitted virus in utero with a prevalence of up to 1.5%. The infection has potentially debilitating and devastating consequences for the infected fetus, being a leading cause for neurological disability worldwide. Once acquired, it often goes undetected with only an assume...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2020.02.009
更新日期：2020-08-01 00:00:00
abstract：AIM:To compare the image quality between conventional volume interpolated breath-hold examination (VIBE) and radial VIBE in contrast-enhanced fat-suppressed T1-weighted images of paediatric abdominal magnetic resonance imaging (MRI) during free-breathing. MATERIALS AND METHODS:Images from paediatric patients who under...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2016.03.018
更新日期：2016-10-01 00:00:00
abstract：AIM:To prospectively compare helical and traditional sequential acquisition of computed tomography (CT) images of the head with respect to lens dose, thyroid dose, and image quality. MATERIALS AND METHODS:Patients undergoing non-emergency unenhanced CT examinations of the head were prospectively randomized to sequenti...
journal_title：Clinical radiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.crad.2010.02.016
更新日期：2010-11-01 00:00:00
abstract：:The experience of the British National Lymphoma Investigation in the treatment of 68 children with Hodgkin's disease is reported over a 14 year period from 1970. The presenting histology was reviewed by a single histopathologist; 87% of the cases were classified as nodular sclerosis (NS) and further subdivided into NS...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(87)80382-3
更新日期：1987-01-01 00:00:00
abstract：:Pulmonary cysts, cavities, and honeycombing are seen in a number of systemic disorders. The purpose of this review is to discuss the findings on thin-section computed tomography (CT) in both congenital and acquired multisystem conditions that give rise to multiple cystic spaces in the lungs. Conditions discussed inclu...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2008.09.015
更新日期：2009-04-01 00:00:00
abstract：:Renal artery stenosis (RAS) causes chronic, progressive ischaemic nephropathy and is the most common cause of secondary hypertension. Radiology plays a large part in the diagnosis, with a variety of imaging techniques available. Each has relative advantages and disadvantages depending on each unique clinical setting. ...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2012.11.007
更新日期：2013-06-01 00:00:00
abstract：:Coronary angiography is in general regarded as a safe investigation with a low risk of serious complications. Unfortunately, a risk of serious complications exists, especially in patients with left main coronary artery disease or 3-vessel disease. The mortality rate ranges in different studies between 0.10% to 0.25%. ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(96)80082-1
更新日期：1996-12-01 00:00:00
abstract：AIM:To investigate the value of hepatic extracellular volume fractions (fECVs) measured using routine liver computed tomography (CT) evaluating liver fibrosis (LF). MATERIALS AND METHODS:A total of 60 patients (male:female ratio, 39:21; mean age, 42.4 years) histologically diagnosed with LF underwent routine liver CT....
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2016.10.003
更新日期：2017-03-01 00:00:00
abstract：:Appendicitis can be a difficult clinical diagnosis to make. A negative appendicectomy rate of 20% has traditionally been accepted as the consequences of appendiceal perforation can be grave. Cross-sectional imaging is increasingly being employed in the investigation of adults with suspected appendicitis. This review w...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2008.06.015
更新日期：2009-02-01 00:00:00
abstract：:Paraneoplastic syndromes are a heterogeneous group of disease presentations caused by underlying tumours. As they are non-metastatic in nature an intensive diagnostic evaluation is warranted to identify potentially curable lesions. The selection of the appropriate method of imaging is important in these cases, especia...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2007.06.005
更新日期：2007-11-01 00:00:00
abstract：:The computed tomography findings in 27 patients with an ultimate diagnosis of femoral neuropathy were reviewed. Haemorrhagic disorders were responsible for the neuropathy in 10 patients, neoplasia in eight, infection in five and in the remaining four patients no abnormality was noted on CT and the aetiology remained u...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(89)80014-5
更新日期：1989-01-01 00:00:00
abstract：:The ultrasound features in eight cases of metastases to the thyroid are reported. The primary tumours were bronchogenic carcinoma (4 cases), breast carcinoma (2 cases), oesophageal carcinoma (1 case) and carcinoma of the stomach (1 case). In this series, none of the metastases were from malignant melanoma or a renal n...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)81880-x
更新日期：1994-09-01 00:00:00
abstract：AIM:To explore the value of CT spectral imaging in the differential diagnosis of necrotic hepatocellular carcinoma (nHCC) and hepatic abscess (HA) during the arterial phase (AP) and portal venous phase (PP). MATERIALS AND METHODS:Sixty patients with 36 nHCCs and 24 HAs underwent spectral CT during AP and PP. Iodine or...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2014.08.018
更新日期：2014-12-01 00:00:00
