Abstract：
AIM:To evaluate the problems that may arise in breast magnetic resonance imaging (MRI) related to the presence of artefacts and pitfalls, in order to improve its accuracy, sensitivity, and specificity. MATERIALS AND METHODS:Six hundred and thirty breast MRI examinations performed using a 1.5 T magnet were analysed retrospectively. Each type of artefact that may have affected the correct interpretation of the acquired images was considered and analysed. In particular, the presence of technical artefacts, which are related to patient-dependent factors or to the examination itself, and non-technical artefacts, which are the result of inadequate and incorrect image interpretation occurring in absence of technical issues, were examined. In every case of suspicious findings, doubtful lesions were subjected to histological characterization for appropriate therapeutic planning. In the remainder of cases, patients underwent follow-up for at least 18 months. RESULTS:Artefacts were found in 33% of all examinations, among those 48.6% were caused by movement, 33.6% were due to non-homogeneous or failed fat saturation, 8.7% to incorrect positioning of the patient, 7.2% to metallic artefacts, 1.4% to aliasing, and 0.5% were "zebra artefacts". When the artefact was identified in a sequence, the sequence was performed a second time after corrective measures. No artefacts affected diagnostic interpretation of the obtained images. CONCLUSION:The present study provides a specific and precise review of the most frequent artefacts with a discussion of possible and practical solutions. A highly qualified team is required to perform accurate diagnostic tests and to limit or remove the possibility of misinterpretation.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Fiaschetti V,Pistolese CA,Funel V,Rascioni M,Claroni G,Della Gatta F,Cossu E,Perretta T,Simonetti Gdoi
10.1016/j.crad.2013.05.103subject
Has Abstractpub_date
2013-11-01 00:00:00pages
e601-8issue
11eissn
0009-9260issn
1365-229Xpii
S0009-9260(13)00313-9journal_volume
68pub_type
杂志文章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：:Labelling leucocytes with 99Tcm using hexamethylpropyleneamine oxime (HMPAO) utilizes the advantages of technetium over indium in imaging inflammation. A retrospective study has been performed on 43 consecutive patients imaged with 99Tcm HMPAO labelled leucocytes in order to assess the reliability of the technique. Pa...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)81933-6
更新日期：1990-09-01 00:00:00
abstract：:Abdominal fat distribution has been compared in 25 men and 25 women by computed tomography (CT) at the level of the umbilicus. Men have significantly more fat within the abdominal cavity. Women have similar total fat, but store a greater proportion of it in their subcutaneous tissues. For this reason, abdominal CT may...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(83)80303-1
更新日期：1983-03-01 00:00:00
abstract：AIM:To evaluate the short-term results of percutaneous stent placement in treating stenosis in the aorta caused by non-specific aortitis (Takayasu's disease). METHOD:Five patients were treated by this method, all of whom had uncontrolled hypertension, haemodynamically significant stenosis in the aorta and a clinically...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(99)91239-4
更新日期：1999-01-01 00:00:00
abstract：OBJECTIVES:To quantify how magnetic resonance imaging (MRI) influences clinicians' diagnosis, diagnostic confidence and management plans in patients with shoulder problems. To investigate whether such changes are associated with an improvement in health. METHODS:A prospective observational study on all patients referr...
journal_title：Clinical radiology
pub_type： 临床试验,杂志文章
doi：10.1016/s0009-9260(97)80131-6
更新日期：1997-05-01 00:00:00
abstract：AIM:To establish a "one-stop" dysphagia service in which a consultation, barium swallow and endoscopy can all be performed in the same hospital visit. MATERIALS AND METHODS:In order to allow both barium swallow examination and endoscopy to be performed on the same day, a novel technique for clearing barium from the up...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1053/crad.2000.0637
更新日期：2001-01-01 00:00:00
abstract：:Duplex Doppler imaging was used to study the effect of pancreatic and bile duct tumours on portal vein and hepatic artery blood flow and the specific Doppler signals recorded from these tumours. Chaotic portal vein flow occurred in 35% (14) of pancreatic and 20% (6) of biliary tumours and complete portal vein occlusio...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80637-3
更新日期：1992-03-01 00:00:00
abstract：AIM:To evaluate the use of a phantom system to help teach the basic techniques of accurate CT-guided needle placement, thereby avoiding the risks associated with teaching on patients. MATERIALS AND METHODS:Gelatine phantoms with five, 1.9 cm embedded spherical wooden targets were constructed. Four trainee operators pe...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2006.09.010
更新日期：2007-02-01 00:00:00
abstract：:There is a pressing clinical need to develop accurate, efficient non-contrast magnetic resonance angiography (NC-MRA) techniques. Our efforts in the field have focused on a novel non-subtractive technique called quiescent-interval slice-selective (QISS) MRA. Compared with other NC-MRA techniques, QISS has the advantag...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2017.12.003
更新日期：2019-01-01 00:00:00
abstract：:Craniosynostosis, caused by premature fusion of the sutures, may be syndromic or non-syndromic. Radiology has an important role to play in the assessment, management and follow-up of these patients. Initial investigations may often be undertaken within general radiology departments. An understanding of the terminology...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1053/crad.2001.0836
更新日期：2002-02-01 00:00:00
abstract：:Fibro-osseous lesions of the bone are well-recognized primary bone tumours. However, given the degree of overlap of imaging findings and variation in management of various sub-types, it is a widely accepted practice to perform a biopsy to obtain histopathological confirmation of the diagnosis. The following is a summa...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2013.09.011
更新日期：2014-02-01 00:00:00
abstract：PURPOSE:The primary aim of this prospective pilot study was to determine if the administration of intravenous secretin prior to contrast-enhanced computed tomography (CT) improves pancreatic enhancement and pancreatic tumor conspicuity. The second aim was to determine the optimal timing for secretin administration prio...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2007.10.002
更新日期：2008-04-01 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：:This study reviews prospectively a series of 29 patients who were examined by magnetic resonance imaging (MRI) and discography for degenerative disc disease. All had persistent low-back pain and non-diagnostic initial investigations, including plain films, myelography and/or computed tomography (CT). The imaging chara...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)82113-0
更新日期：1990-10-01 00:00:00
abstract：AIM:To describe a cerebral computed tomography angiography (CTA) technique using a 320-detector CT machine and a small contrast medium volume (35 ml, 15 ml for test bolus). Also, to compare the quality of these images with that of the images acquired using a larger contrast medium volume (90 or 120 ml) and a fixed time...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2013.10.021
更新日期：2014-03-01 00:00:00
abstract：:Twenty-seven patients with a T1 or T2 N0M0 breast carcinoma were treated by local excision of the lump followed by radical radiotherapy, using orthovoltage X-rays. The crude survival rate was 100% at three years, 92% at five years, 95% at 10 years. The local recurrence rate was 8% at three years, 12% at five years, 10...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(81)80246-2
更新日期：1981-01-01 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：:The visibility on ultrasound (US) of 79 screen-detected small breast cancers was studied retrospectively. Overall visibility on US was 61% (48/79). Cancers presenting as microcalcification alone on mammography were rarely demonstrated (1 of 26 tumours). However, the US visibility of cancers with other mammographic app...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)81973-7
更新日期：1994-11-01 00:00:00
abstract：:The heart and mediastinal structures can be overlooked at CT pulmonary angiogram (CTPA). This pictorial review will demonstrate the features of cardiac disease that may be evident on a CTPA. CTPA allows assessment of not only the pulmonary arteries for embolism, but also of the bronchi, lung parenchyma, mediastinum an...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2004.07.005
更新日期：2005-01-01 00:00:00
abstract：:A comparison has been made of the MRI findings of 17 studies in 16 patients with osteomyelitis: eight studies were performed in patients with acute osteomyelitis, six in chronic and three in healed osteomyelitis. Soft tissues, cortex and marrow were assessed in all patients. The best predictors of acute osteomyelitis ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80934-1
更新日期：1990-01-01 00:00:00
abstract：:Metastatic spinal cord syndromes usually result from neural compression by adjacent vertebral disease but are occasionally caused by intradural or intramedullary disease. MRI is the most accurate method for evaluation of such syndromes. Knowledge of the relevant imaging appearances and therapeutic options enables the ...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2004.10.011
更新日期：2005-06-01 00:00:00
abstract：AIMS:To describe the optimum conditions for successful free-hand ultrasound guided intervention using an in-vitro experiment. MATERIALS AND METHODS:Optimal free-hand biopsy conditions were determined using targets buried in a purpose-built interventional phantom. The needle/probe distance and probe/phantom surface ang...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1053/crad.2000.0579
更新日期：2001-06-01 00:00:00
abstract：:Ultrasound and computed tomography (CT) have become primary methods of evaluating patients with abdominal aortic aneurysms. Arteriography may be necessary for further assessment. We have recently investigated two patients with complicated abdominal aortic aneurysms, one patient with Marfan's syndrome and the other wit...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(85)80328-7
更新日期：1985-07-01 00:00:00
abstract：:The use of duplex ultrasound for the diagnosis and assessment of abdominal aortic dissection and visceral arterial involvement is discussed. Ultrasound is simple and non-invasive and may be superior to aortography in diagnosis; it should be performed after ultrasound assessment of the aortic root. It also provides an ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)82147-6
更新日期：1990-11-01 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：: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：:Three cases of pneumatosis coli (PC) in adult patients with acute myeloid leukaemia seen over the last five years in Hammersmith Hospital are reported. Although definite conclusions are impossible, we suggest that that pneumatosis could be due to damage to the bowel mucosa as a result of the disease or the treatment. ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(79)80145-2
更新日期：1979-03-01 00:00:00
abstract：:The purpose of this paper is to define the normal and variable appearances of the sacroiliac joints and adjacent subchondral marrow on unenhanced and enhanced Magnetic Resonance Imaging (MRI). Twenty subjects were imaged with spin-echo T1-weighted (T1), fast spin-echo T2-weighted (T2), T1-weighted with fat suppression...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)83133-2
更新日期：1995-06-01 00:00:00
abstract：AIM:To evaluate the mixed-reality (MR) hologram, a novel technology based on two-dimensional images, which simulates three-dimensional (3D) images and provides a dynamic and interactive alternative, for its usefulness in the diagnosis and surgical planning of double outlet of the right ventricle (DORV). MATERIALS AND ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2020.10.017
更新日期：2020-12-09 00:00:00
abstract：AIM:To evaluate the quality of 100 kVp images with a hybrid iterative reconstruction algorithm level of 40% and 120 kVp (low-tube-current) images with a hybrid iterative reconstruction algorithm level of 60% in low-dose abdominal computed tomography (CT) using almost the same radiation dose. MATERIALS AND METHODS:This...
journal_title：Clinical radiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.crad.2013.04.008
更新日期：2013-10-01 00:00:00
