Abstract:
OBJECTIVE:To describe and evaluate a novel technical development to improve detection of intracranial vessel occlusions using multiphase CT angiography (MPCTA). MATERIALS AND METHODS:The institutional ethics committee approved the study. Fifty patients (30 consecutive distal (M2 or smaller) anterior circulation occlusions, ten M1 occlusions, ten cases without occlusion) presenting with suspected AIS who underwent MPCTA were included. Post-processing of MPCTA studies created "subtraction" and "delayed enhancement" (DE) datasets. Initially, non-contrast CT and MPCTA studies for each patient were evaluated. Readers' confidence, speed and sensitivity of detection of intracranial vessel occlusions were recorded. After an interval of at least 4 weeks, readers were provided with post-processed images and studies were re-evaluated. RESULTS:While the sensitivity of detection of intracranial vessel occlusions was equal for both conventional MPCTA and subMPCTA, the mean time taken to identify a vessel occlusion decreased by 64 % using subMPCTA (16 s vs. 45 s with conventional MPCTA) (p<0.001). In addition, confidence in interpretation improved (from 4.4 to 4.9) using subMPCTA (p<0.001). CONCLUSION:SubMPCTA is a novel technique that aids in identifying small intracranial vessel occlusions in the suspected AIS patient. SubMPCTA increases confidence in interpretation and reduces the time taken to detect intracranial vessel occlusions. KEY POINTS:• SubMPCTA processes MPCTA data to better demonstrate intracranial arterial occlusions. • SubMPCTA increases confidence and speed of interpretation of MPCTA studies. • SubMPCTA may aid in rapidly differentiating acute ischaemic stroke from stroke mimics.
journal_name
Eur Radioljournal_title
European radiologyauthors
Byrne D,Walsh JP,Sugrue G,Stanley E,Marnane M,Walsh CD,Kelly P,Murphy S,Kavanagh EC,MacMahon PJdoi
10.1007/s00330-017-5124-1subject
Has Abstractpub_date
2018-04-01 00:00:00pages
1731-1738issue
4eissn
0938-7994issn
1432-1084pii
10.1007/s00330-017-5124-1journal_volume
28pub_type
杂志文章abstract::The purpose of this study was to evaluate the achievable organ dose savings in low-dose multislice computed tomography (MSCT) of the heart using different tube voltages (80 kVp, 100 kVp, 120 kVp) and compare it with calculated values. A female Alderson-Rando phantom was equipped with thermoluminescent dosimeters (TLDs...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-005-0124-y
更新日期:2006-08-01 00:00:00
abstract:PURPOSE:To investigate the optimal imaging delay time of dynamic contrast-enhanced magnetic resonance (MR) imaging in women with endometrial cancer. MATERIALS AND METHODS:This prospective single-institution study was approved by the institutional review board, and informed consent was obtained from the participants. T...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-014-3327-2
更新日期:2014-11-01 00:00:00
abstract::The aim of this study was to compare MR imaging and endoscopic ultrasonography (EUS) for the local staging of rectal tumours. Forty-nine patients were examined on a 1.5-T MR unit using either a pelvic phased-array coil (n = 37) alone or combined with an endorectal coil (n = 12). Sagittal and axial sequences with T2-we...
journal_title:European radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s003300050979
更新日期:2000-01-01 00:00:00
abstract::The aim of this study was to depict and characterize inflammatory soft tissue proliferations caused by rheumatoid arthritis (RA) in the craniocervical region by unenhanced and contrast-enhanced CT. Computed tomography of the craniocervical region was performed in 35 patients in the axial plane before and after the i.v...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300000433
更新日期:2000-01-01 00:00:00
abstract::The aim of this study was to assess the upper airway status of sleep apnea syndrome (SAS) patients with low-field MR fluoroscopy. Twenty patients with clinically diagnosed SAS underwent upper airway monitoring using MR fluoroscopy for 5 min while awake and for 30 min while asleep. A 0.064-T permanent-magnet MR imaging...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050816
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:Determination of coronary artery calcium scoring (CACS) in non-contrast computed tomography (CT) images has been shown to be an important prognostic factor in coronary artery disease (CAD). The objective of this study was to evaluate the accuracy of CACS from virtual non-contrast (VNC) imaging generated from ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07677-w
更新日期:2021-01-20 00:00:00
abstract::This technical note describes a novel CT scan protocol that includes a non-enhanced CT, dynamic CTA, and perfusion of the whole brain and CTA of the carotid arteries using a 320-row area detector CT scanner, with a unique contrast injection and acceptable radiation exposure dose in patients presenting with acute ische...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06041-x
更新日期:2019-09-01 00:00:00
abstract::The aim of this study was to evaluate the role of MR imaging of the fetus to improve sonographic prenatal diagnosis of congenital anomalies. In 40 fetuses (not consecutive cases) with an abnormality diagnosed with ultrasound, additional MR imaging was performed. The basic sequence was a T2-weighted single-shot half Fo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1811-6
更新日期:2003-07-01 00:00:00
abstract::The aim of this study was to determine the correlation between cigarette-smoke-related bronchial disease and air trapping as assessed by expiratory high-resolution CT (HRCT) scans. Thirty healthy subjects (11 non-smokers, 7 ex-smokers for > 2 years, 12 current smokers; age range 35-55 years) with a smoking history bet...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050558
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Image-guided interventional procedures of the nerves are commonly performed by physicians from different medical specialties, although there is a lack of clinical indications for these types of procedures. This Delphi-based consensus provided a list of indications on image-guided interventional procedures fo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06479-z
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVES:To review the role of imaging in the diagnosis of recurrent disease in previously treated non-small cell lung cancer (NSCLC) and discuss the imaging pitfalls. METHODS:A comprehensive review of published literature on CT and PET imaging of NSCLC recurrence was performed. Diagnostic and prognostic values are ...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-011-2299-8
更新日期:2012-03-01 00:00:00
abstract::Recently, a new oral liver-specific manganese-based MR agent (CMC-001) has been introduced. This contrast medium is delivered to the liver in high concentrations in the portal vein and very low doses in the hepatic artery, as only small amounts of manganese enter the general circulation. It is taken up by the hepatocy...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-006-0336-9
更新日期:2007-01-01 00:00:00
abstract::Varicocele can be very easily diagnosed by physical examination and subsequently treated when it is painful or associated with testicular hypotrophy. However, palpability of the spermatic vein and reflux in low grade or even questionable varicoceles can be difficult to assess without imaging modalities. This can be a ...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300050706
更新日期:1999-01-01 00:00:00
abstract::Although dual-energy CT (DECT) may prove useful in a variety of abdominal imaging tasks, renal mass evaluation represents the area where this technology can be most impactful in abdominal imaging compared to routinely performed contrast-enhanced-only single-energy CT exams. DECT post-processing techniques, such as cre...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-020-07426-z
更新日期:2020-11-18 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:PURPOSE:To evaluate in vivo T2 mapping as quantitative, imaging-based biomarker for meniscal degeneration in humans, by studying the correlation between T2 relaxation time and degree of histological degeneration as reference standard. METHODS:In this prospective validation study, 13 menisci from seven patients with ra...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06091-1
更新日期:2019-10-01 00:00:00
abstract::Our purpose was to assess image quality and interpretation problems of two-dimensional (2D) coronary MR angiograms. The coronary arteries of 27 subjects (12 normal volunteers and 15 patients) were evaluated with 2D coronary MR angiography (MRA). Coronary MRA was performed with a fat-suppressed electrocardiographically...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/BF00180601
更新日期:1996-01-01 00:00:00
abstract:OBJECTIVES:To determine the integrative value of clinical, hematological, and computed tomography (CT) radiomic features in survival prediction for locally advanced non-small cell lung cancer (LA-NSCLC) patients. METHODS:Radiomic features and clinical and hematological features of 118 LA-NSCLC cases were firstly extra...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5949-2
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVES:To investigate the association of contrast-enhanced cone beam breast CT (CE-CBBCT) features, immunohistochemical (IHC) receptors, and molecular subtypes in breast cancer. METHODS:In this retrospective study, patients who underwent preoperative CE-CBBCT and received complete IHC results were analyzed. CE-CBB...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-07277-8
更新日期:2020-10-02 00:00:00
abstract::Digital imaging (digital image intensifier radiography, storage phosphor/selenium radiography) is increasingly becoming commonplace in radiology departments for diagnostic purposes. Despite 10 years of experience, the advantages and disadvantages of those methods are still heavily discussed among users, financiers and...
journal_title:European radiology
pub_type: 杂志文章
doi:
更新日期:1997-02-21 00:00:00
abstract:OBJECTIVES:Various imaging methods have been evaluated regarding non-invasive differentiation of renal cell carcinoma (RCC) subtypes. Dual-energy computed tomography (DECT) allows iodine concentration (IC) analysis as a correlate of tissue perfusion. Microvascular density (MVD) in histopathology specimens is evaluated ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06298-2
更新日期:2020-01-01 00:00:00
abstract::Osteochondritis (osteochondrosis) dissecans (OCD) is a common condition in children, adolescents, and young adults. Describing OCD together with osteochondral fractures and epiphyseal ossification disturbances and considering these three conditions as one entity has caused much confusion. Age distribution and localiza...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300050348
更新日期:1998-01-01 00:00:00
abstract::The development and progression of a hepatocellular carcinoma (HCC) in a chronically diseased liver, i.e., the carcinogenesis, comprise a multistep and long-term process. Morphologically, this process is associated with the presence of distinct nodular lesions in the liver that are called 'preneoplastic lesions.' Thes...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-007-0602-5
更新日期:2007-10-01 00:00:00
abstract::Several studies have shown that the thickness of tongue carcinoma is related to prognosis and to the likelihood of cervical node metastases. We investigated whether preoperative estimates of tumor thickness and volume, as determined from magnetic resonance imaging (MRI), correlated with histologic thickness and might ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-006-0263-9
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVES:Multi-detector-row computed tomography angiography (MDCTA) plays an important role in the assessment of patients with suspected coronary artery disease. However, MDCTA tends to overestimate stenosis in calcified coronary artery lesions. The aim of our study was to evaluate the diagnostic performance of calci...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4675-x
更新日期:2017-07-01 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 evaluate the performance of diffusion-weighted MRI (DWI) in addition to T2-weighted (T2W) MRI for nodal restaging after chemoradiation in rectal cancer. METHODS:Thirty patients underwent chemoradiation followed by MRI (1.5 T) and surgery. Imaging consisted of T2W-MRI and DWI (b0, 500, 1000). On T2W-MRI, ...
journal_title:European radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00330-010-1937-x
更新日期:2011-02-01 00:00:00
abstract::Several excellent imaging modalities are available for studying the great vessels of the chest noninvasively. Besides computed tomography (CT), magnetic resonance imaging (MRI) and echocardiography (in particular the transesophageal approach) can accurately depict abnormalities of the thoracic vasculature, and are a v...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300050516
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the diagnostic accuracy of split-bolus single-scan computed tomography angiography (CTA) protocol for evaluation of acute mesenteric ischemia and alternate diagnoses. MATERIALS AND METHODS:In this IRB-approved, HIPAA-compliant retrospective study, consecutive patients from 21 October 2016 to 6 Ma...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-020-06769-x
更新日期:2020-07-01 00:00:00
abstract:UNLABELLED:In a recent paper, the authors oppose the opinion that " intra-arterial administration of iodinated-based contrast media (CM) appears to pose a greater risk of contrast-induced nephropathy (CIN) than intravenous administration" . As nephrologists, we are happy to have the opportunity to offer our expertise i...
journal_title:European radiology
pub_type: 评论,信件
doi:10.1007/s00330-012-2720-y
更新日期:2013-05-01 00:00:00