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 performed 15 simulated biopsy procedures on the targets (series one) and repeated identical procedures 2 weeks later (series two). Statistical analysis of accuracy of needle placement and subject confidence were performed. RESULTS:Significant sequential improvement in axial plane angular error was noted with the average error decreasing by 0.33 degrees after every five procedures performed (95% CI: -0.58 to -0.08, p=0.01). Operator confidence indicated significant improvement both within each series and from series one to series two (95% CI: 0.08 to 1.17, p=0.025 and 95% CI: 0.00 to 0.58, p=0.05) respectively. However, variability in operator performance made statistically significant improvement in other variables unproven. CONCLUSION:Despite the study comprising a relatively small number of participants and procedures, it clearly demonstrated the effectiveness of teaching operators to perform CT-guided procedures using a phantom system. Needle placement accuracy significantly improved, with a reduction in axial angular error, and improved operator confidence without the risks associated with training on patients. Three of the operators in this study had never performed a CT-guided procedure previously, and their proficiency, after a relatively short but intense period of training, was impressive. The use of phantoms should be considered routinely for basic training of CT-guided needle placement.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Dimmick S,Jones M,Challen J,Iedema J,Wattuhewa U,Coucher Jdoi
10.1016/j.crad.2006.09.010subject
Has Abstractpub_date
2007-02-01 00:00:00pages
166-71issue
2eissn
0009-9260issn
1365-229Xpii
S0009-9260(06)00318-7journal_volume
62pub_type
杂志文章abstract：:We report a case of a patient with sickle cell disease who presented with mesenteric nodes and pulmonary TB and who subsequently relapsed on triple therapy and presented with disseminated tuberculous osteomyelitis and cervical lymphadenopathy. We emphasize the difficulty of establishing the diagnosis at all stages of ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80648-8
更新日期：1992-03-01 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：: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：: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 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：:The use of computers is increasing in every field of medicine, especially radiology. Filmless radiology departments, speech recognition software, electronic request forms and teleradiology are some of the recent developments that have substantially increased the amount of time a radiologist spends in front of a comput...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2008.08.003
更新日期：2009-02-01 00:00:00
abstract：:Twenty-nine patients with peripheral vascular disease had the popliteal artery segment assessed by xeroangiography and nuclear magnetic resonance (NMR) scanning. The result of each test was compared with conventional contrast arteriography. Nuclear magnetic resonance and xeroangiography correctly predicted popliteal a...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(84)80205-6
更新日期：1984-09-01 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：:Sarcomas rarely follow irradiation of benign lesions of bone as the dangers of this form of therapy is well recognised. Forty-three patients with soft tissue neoplasms - mainly carcinoma - were irradiated and developed sarcomas in the radiation field. Twenty-four of these patients were seen at this centre in the last ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(82)80065-2
更新日期：1982-03-01 00:00:00
abstract：AIM:To evaluate the usage, safety, and efficacy of high-dose intravenous metoprolol for heart rate reduction in computer tomographic (CT) coronary angiography. MATERIALS AND METHODS:As this was retrospective analysis of anonymous data, medical ethics committee approval was waived by the regional health research author...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2014.03.003
更新日期：2014-07-01 00:00:00
abstract：AIM:To examine the feasibility of using automated lexical analysis in conjunction with machine learning to create a means of objectively characterising radiology reports for quality improvement. MATERIALS AND METHODS:Twelve lexical parameters were quantified from the collected reports of four radiologists. These inclu...
journal_title：Clinical radiology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.crad.2015.06.080
更新日期：2015-11-01 00:00:00
abstract：AIM:To perform a retrospective review of all the conventional radiographic and magnetic resonance imaging (MRI) studies performed in patients with early postoperative pain following cobalt-chrome metal-on-metal total hip arthroplasty. METHODS:A retrospective review of the radiology, surgical findings and histology in ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2007.07.012
更新日期：2008-01-01 00:00:00
abstract：AIM:Percutaneous 14-gauge core biopsy (CB) guided by digital stereotactic mammography is now an established technique in the investigation of women with non-palpable suspicious mammographic lesions. Diagnostic sensitivity of CB is affected both by the nature of the mammographic abnormality and by the number of core sam...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1053/crad.1999.0199
更新日期：1999-06-01 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：:In presenting five new cases of renal adenomas the authors describe the general nature of these rare tumours. If the small adenoma corresponding to microscopic forms is frequent, the large adenoma is rare and always solitary. Haematuria and pain are the most common signs. The classic criterion of non-malignancy in a s...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(79)80100-2
更新日期：1979-05-01 00:00:00
abstract：:The lymphatic system of the abdomen comprises of the cisterna chyli, its major and minor lymphatic tributaries, and lymph nodes. Disorders of the lymphatic system of the abdomen are rarely encountered and consist of primary and secondary types. Abdominal lymphangiomas constitute the majority and have characteristic im...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2016.06.116
更新日期：2016-10-01 00:00:00
abstract：AIM:To compare the diagnostic quality of time-of-flight magnetic resonance angiography (TOF-MRA) and metal-artefact-reduction (MAR) flat-panel-detector computed tomography angiography (FPCTA) and to determine the imaging technique best suited for evaluation endovascular and surgically treated aneurysms. METHODS:The im...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2017.07.011
更新日期：2018-02-01 00:00:00
abstract：:Three patients with pancreatic clonorchiasis were examined with endoscopic retrograde pancreatography. On each of the three cases there was diffuse irregular dilatation of tributaries of the pancreatic duct in the pancreatic tail. The main pancreatic duct and tributaries draining into the body and head portion were no...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80967-5
更新日期：1990-03-01 00:00:00
abstract：:Osteonecrosis is a relatively common condition, which may be idiopathic or secondary to a variety of clinical situations. It may involve the subarticular region of a joint, when it is commonly referred to as ischaemic necrosis, or the metaphyseal regions of long bones, when it is referred to as bone infarction. In bot...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2004.04.014
更新日期：2004-12-01 00:00:00
abstract：:A prospective study, followed by a retrospective audit, was made of the radiographs and clinical features of 225 consecutive neonates with abdominal distension presenting during a period of 4 years. More than one major cause for the distension was found in a third of cases. Excluding cases of ano-rectal atresia, diagn...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(83)80217-7
更新日期：1983-07-01 00:00:00
abstract：:Morton's 'neuroma' is a painful focus of peri-neural fibrosis, which may affect the interdigital nerves of the feet. Clinical diagnosis and localization may be inaccurate. Computed tomography (CT), ultrasound and magnetic resonance imaging (MRI) have been used to confirm the diagnosis pre-operatively. Recently, MRI us...
journal_title：Clinical radiology
pub_type： 临床试验,杂志文章
doi：10.1016/s0009-9260(97)80305-4
更新日期：1997-01-01 00:00:00
abstract：:Seventy-one patients with allograft dysfunction had concomitant Doppler sonography and percutaneous biopsy. Forty-one had biopsy proven acute cellular rejection and eight had acute cellular rejection in combination with acute tubular necrosis. Real time ultrasonic appearance and various parameters of Doppler waveform ...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(05)80168-0
更新日期：1992-10-01 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 determine whether radiographers are able to perform and interpret barium swallows and meals (BSM) to an acceptable standard. MATERIALS AND METHODS:A retrospective audit was performed of all radiographer-managed BSMs over a 4-year period in an acute hospital. Descriptive statistics were used to analyse patient d...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2009.04.008
更新日期：2009-08-01 00:00:00
abstract：:Twenty-eight patients with non-Hodgkin's lymphoma of the thyroid were treated between 1954 and 1981. The duration of follow-up ranged from 39 to 176 months. The overall 5 year survival was 51%. Twenty deaths have been recorded of which 12 were attributed to non-Hodgkin's lymphoma. Eight patients relapsed following ini...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(87)80067-3
更新日期：1987-05-01 00:00:00
abstract：:There have been significant advances in the diversity and effectiveness of hearing technologies in recent years. Implanted auditory devices may be divided into those that stimulate the cochlear hair cells (bone conduction devices and middle ear implants), and those that stimulate the neural structures (cochlear implan...
journal_title：Clinical radiology
pub_type： 杂志文章,评审
doi：10.1016/j.crad.2017.03.002
更新日期：2018-01-01 00:00:00
abstract：:A retrospective analysis of the effect of oral and intravenous hyoscine N butylbromide (Buscopan) on the dimensions of the large bowel during double contrast barium enema (DCBE) examination was made and compared with corresponding measurements without Buscopan. It was found that 20 mg oral Buscopan did not alter colon...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/s0009-9260(82)80258-4
更新日期：1982-05-03 00:00:00
abstract：AIM:To investigate the clinical and image features of thymic neuroendocrine tumours (NETs), and characterise the radiological patterns of recurrence and metastasis on serial imaging studies. MATERIALS AND METHODS:The study included 14 patients (11 males) with a histopathological diagnosis of thymic NETs (one typical c...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2017.11.025
更新日期：2018-05-01 00:00:00
abstract：AIM:To contribute to the evidence base evaluating the usefulness of preoperative imaging in management of atypical endometrial hyperplasia. MATERIALS AND METHODS:A single-centre retrospective observational study was conducted comparing preoperative, post-diagnostic radiological staging with surgicopathological staging...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2020.03.022
更新日期：2020-07-01 00:00:00
abstract：AIM:To present the neuroradiological and clinical findings of fourth-ventricular meningiomas to increase awareness of this entity. MATERIALS AND METHODS:The computed tomography (CT; n=5), magnetic resonance imaging (MRI; n=9) features and clinical presentations of 10 patients with pathologically documented fourth-vent...
journal_title：Clinical radiology
pub_type： 杂志文章
doi：10.1016/j.crad.2011.10.017
更新日期：2012-05-01 00:00:00
