Abstract:
AIM:To evaluate the usefulness of pseudo-continuous arterial spin labelling (pCASL) imaging in grading and differentiating histological subtypes of meningiomas. MATERIALS AND METHODS:In this prospective study, conventional magnetic resonance imaging (MRI) with contrast-enhanced T1-weighted images and pCASL were acquired with a 3 T MRI system before surgery in 125 consecutive patients with suspected meningiomas. Finally, the perfusion parameters were collected from 84 grade I and 23 grade II meningiomas. On the pCASL perfusion map, the mean absolute cerebral blood flow (CBF) values from the meningioma (CBFtumour), peritumoural oedema (CBFPTO), white matter of contralateral centrum semi-ovale (CBFwm) and normal grey matter (CBFgm) were calculated. Additionally, the associations of these perfusion parameters with the value of ki-67 index were analysed. RESULTS:The CBFwm value correlated negatively with the largest diameter of the tumour, which limited its usage as a reference for ratio calculation. The CBFtumour values of grade II and grade I meningiomas did not differ significantly: 137.36±71.85 ml/min/100 g versus 123.58±135.80 ml/min/100 g (p=0.641). The CBFPTO value was higher for grade II meningioma as than for grade I meningiomas: 30.30±15.56 ml/min/100 g versus 22.33±9.87 ml/min/100 g (p=0.037). The CBFtumour value was highest in angiomatous meningioma and lowest in fibrous meningioma, thus enabling the differentiation of subtypes of meningioma. The CBFtumour value did not correlate with the ki-67 index of meningioma. CONCLUSION:The CBFPTO value, rather than the CBFtumour value, from pCASL imaging may serve as a key factor in distinguishing different grades of meningiomas. Moreover, angiomatous meningiomas and fibrous meningiomas can be identified by CBFtumour value.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Lu Y,Xiong J,Yin B,Wen J,Liu L,Geng Ddoi
10.1016/j.crad.2017.08.005subject
Has Abstractpub_date
2018-02-01 00:00:00pages
176-184issue
2eissn
0009-9260issn
1365-229Xpii
S0009-9260(17)30439-7journal_volume
73pub_type
杂志文章abstract::Antenatal diagnosis of lung abnormalities by ultrasound has been a much more frequent occurrence in recent years. There is a range of appearances from uniform increased echogenicity through to lesions containing large echo-free areas. Bilateral uniformly increased echogenicity has a poor outlook but in all other situa...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/s0009-9260(98)80188-8
更新日期:1998-11-01 00:00:00
abstract::The ultrasound appearances of primary liver tumour in three patients are described. Changes in these appearances following devascularisation of the tumour by transcatheter embolisation are demonstrated. A possible mechanism for the change in appearances is suggested and is discussed in the light of plain radiographic ...
journal_title:Clinical radiology
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doi:10.1016/s0009-9260(80)80028-6
更新日期:1980-11-01 00:00:00
abstract:AIM:To evaluate the contribution which addition of pelvic computed tomography venography (CTV) to a standard CT pulmonary angiography (CTPA) imaging protocol makes to a definitive diagnosis of thromboembolic disease. MATERIALS AND METHODS:One hundred and six consecutive patients over the age of 55 years referred for (...
journal_title:Clinical radiology
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doi:10.1053/crad.2001.0796
更新日期:2002-06-01 00:00:00
abstract::Sporadic cases or radiation hepatitis have been reported following doses above 3500 rad delivered in 3-4 weeks to the liver. The authors report their experience of radiation hepatitis in two out of 117 consecutive lymphoma cases treated with total abdominal irradiation. These two patients developed clinically overt ma...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(76)80107-9
更新日期:1976-10-01 00:00:00
abstract:AIM:To assess whether the size of peritumoural stiffness (PTS) on shear-wave elastography (SWE) for small primary breast cancers (≤15 mm) was associated with size discrepancies between grey-scale ultrasound (GSUS) and final histological size and whether the addition of PTS size to GSUS size might result in more accurat...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2014.08.002
更新日期:2014-12-01 00:00:00
abstract:AIM:To investigate the imaging features of chondrosarcoma of the temporomandibular joint (TMJ) and review the literature. MATERIALS AND METHODS:Computed tomography (CT), magnetic resonance imaging (MRI), and integrated positron-emission tomography (PET)/CT images of nine patients with histopathologically confirmed cho...
journal_title:Clinical radiology
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journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2018.09.003
更新日期:2019-02-01 00:00:00
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journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(84)80125-7
更新日期:1984-05-01 00:00:00
abstract::In a prospective study 59 consecutive outpatients having double-contrast barium enemas (DCBE) were randomised into four groups. Each group had their enema performed at either a 15, 30, 45 or 60 minute interval following the end of a 1.5 litre cleansing water enema. Review of the films by two radiologists demonstrated ...
journal_title:Clinical radiology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1990-05-01 00:00:00
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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
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journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(77)80099-8
更新日期:1977-03-01 00:00:00
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journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(84)80066-5
更新日期:1984-11-01 00:00:00
abstract::Chondromyxoid fibroma is a rare benign neoplasm of bone with a predominant incidence in the second and third decades of life. The commonest site is on either side of the knee joint. There is often endosteal sclerosis, well-defined scalloping and other benign features, although the cortex may be destroyed. It is common...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(82)80400-5
更新日期:1982-11-01 00:00:00
abstract::Intrascrotal masses in the adult are worrisome due to their possible malignancy. Most intratesticular masses are malignant whereas most extratesticular masses are benign. The differential diagnosis of intrascrotal cysts usually includes simple testicular cysts, intratesticular epidermoid and dermoid cysts, tunica albu...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(05)83198-8
更新日期:1995-08-01 00:00:00
abstract::Fifty-eight patients presenting with axillary symptoms (pain, oedema, etc) following radiation therapy for breast carcinoma were randomized to be investigated by either computed tomography (CT: 29 patients) or magnetic resonance imaging (MRI: 28). The objectives of the study were to compare the efficacy of the two tes...
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(05)81103-1
更新日期:1993-12-01 00:00:00
abstract:AIM:To evaluate the value of magnetic resonance (MR) diffusion-weighted imaging (DWI) and apparent diffusion coefficients (ADC) maps in the diagnosis of intraparenchymal epidermoid cysts (ECs). MATERIALS AND METHODS:Six cases of histopathologically proven intraparenchymal ECs were studied. All patients were examined w...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2008.01.008
更新日期:2008-07-01 00:00:00
abstract:AIM:To evaluate whether 3-T four-dimensional (4D) arterial spin-labelling (ASL) -based magnetic resonance angiography (MRA) is useful for assessing the collateral circulation via the circle of Willis in patients with carotid artery steno-occlusive disease. MATERIALS AND METHODS:Institutional review board approval and ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2015.05.002
更新日期:2015-09-01 00:00:00
abstract::In the clinical use of magnetic resonance imaging (MRI) it may be more important to understand some of the technical aspects of the imaging technique, rather than the fundamental physical principles. This review, therefore, sets out to present the essential aspects of the technique, including T1 and T2 relaxation time...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(85)80232-4
更新日期:1985-11-01 00:00:00
abstract:AIM:To investigate the underlying relationship between obesity and the extent of emphysema depicted at CT. METHODS AND MATERIALS:A dataset of 477 CT examinations was retrospectively collected from a study of chronic obstructive pulmonary disease (COPD). The low attenuation areas (LAAs; ≤950 HU) of the lungs were ident...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2015.01.007
更新日期:2015-05-01 00:00:00
abstract::The common femoral artery is commonly used as arterial access for a wide range of radiological and cardiological procedures. Pseudoaneurysm formation is the most common arterial complication of femoral artery catheterization, and is diagnosed using colour Doppler ultrasound. Ultrasound-guided thrombin injection has re...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2008.07.001
更新日期:2008-12-01 00:00:00
abstract::The case of a 64-year-old man who presented with unilateral pulsatile exophthalmos is described. A defect in the supero-medial wall of the orbit and an extraconal low density mass were demonstrated by orbital radiographs and CT. Positive contrast CT cisternography confirmed the diagnosis of a leptomeningeal cyst. ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(89)80278-8
更新日期:1989-09-01 00:00:00
abstract::Percutaneous high brachial aortography with a small diameter catheter (5 gauge) was used as an alternative to the translumbar approach in 45 patients in whom access via the femoral route was not considered possible. Only one serious complication occurred: the late development of a bleeding false aneurysm in a patient ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(86)80036-8
更新日期:1986-11-01 00:00:00
abstract:AIM:To evaluate the diagnostic performance of dual-energy computed tomography (DECT) using the virtual non-calcium (VNCa) technique for the detection of different degrees of vertebral bone marrow oedema. MATERIALS AND METHODS:The present prospective study was approved by the institutional ethics committee. Informed co...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2019.09.143
更新日期:2020-02-01 00:00:00
abstract::Choroidal malignant melanomas are relatively rare tumours and can have a very long natural history. The management of these tumours is controversial. The results of a study of a small group of patients treated by radiotherapy, either as primary treatment or following local excision or enucleation, are presented here. ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(87)80388-4
更新日期:1987-01-01 00:00:00
abstract:AIM:Peripherally inserted central catheters (PICC) are increasingly used as a route of chemotherapy administration. Our aims were to assess a collaborative approach to PICC placement, with radiological support for a nurse led line insertion service in a minority of cases, and to determine whether PICC provided a safe a...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1053/crad.2001.0843
更新日期:2002-05-01 00:00:00
abstract:AIM:To determine the diagnostic value of integrating three-dimensional perfused blood volume (3D PBV) with multimodal computed tomography (CT) [non-enhanced CT (NECT), CT perfusion (CTP), and CT angiography (CTA)] in acute ischaemic stroke. MATERIALS AND METHODS:NECT, CTP, and CTA were performed in 25 acute ischaemic ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/j.crad.2011.01.003
更新日期:2011-06-01 00:00:00
abstract:AIM:To compare percutaneous endoscopic gastrostomy (PEG) with radiologically inserted gastrostomy (RIG) and assess a hybrid gastrostomy technique (per-oral image-guided gastrostomy, PIG). MATERIALS AND METHODS:Fifty PEGs and 50 RIGs performed in three centres were prospectively compared and the endoscopic findings of ...
journal_title:Clinical radiology
pub_type: 杂志文章,多中心研究
doi:10.1016/s0009-9260(03)00058-8
更新日期:2003-05-01 00:00:00
abstract::Four cases of laryngeal papillomatosis are presented to illustrate the clinical and radiological features associated with this condition. In children the papillomas are usually multiple and benign but they frequently recur after surgical treatment. In adults they are generally solitary and have a very low recurrence r...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1016/s0009-9260(86)80013-7
更新日期:1986-11-01 00:00:00
abstract:AIM:To analyse reasons for and the nature of clinico-radiological contacts and their clinical impact. MATERIALS AND METHODS:Three different surveys were performed. (1) Data concerning contacts between staff radiologists (n = 20) and clinicians during 10 consecutive working days were collected; (2) staff clinicians (n ...
journal_title:Clinical radiology
pub_type: 杂志文章
doi:10.1053/crad.2000.0495
更新日期:2000-08-01 00:00:00
abstract:AIM:To review the literature on the use of prophylactic balloon occlusion alone and in conjunction with arterial embolization of the internal iliac arteries in women with placenta accreta. MATERIALS AND METHODS:The PubMed, MEDLINE, CINAHL, EMBASE, and Cochrane Library databases were searched for keywords related to th...
journal_title:Clinical radiology
pub_type: 杂志文章,评审
doi:10.1016/j.crad.2011.10.031
更新日期:2012-06-01 00:00:00