South African Radiographer - latest Issue
Volume 54, Issue 2, 2016
Author Leonie MunroSource: South African Radiographer 54 (2016)More Less
Professional growth requires that we should take stock of where we are , and where we are going. In clinical practice we should reflect on our actions during service delivery to patients. How would we know that our clinical practice meets professional standards? In South Africa, we are required to adhere to the regulations defining the scope of profession of radiography as stipulated in the Health Professions Act 56 of 1974.
Challenges of training and clinical skill acquisition in radiography education : perceptions of students in resource-poor southeastern Nigeria : peer reviewed original articleSource: South African Radiographer 54, pp 7 –13 (2016)More Less
Purpose : To investigate the factors that contribute to the challenges of training and clinical skill acquisition in undergraduate radiography education in southeastern Nigeria.
Methods : A cross-sectional prospective study, which targeted radiography undergraduates in the clinical classes in two universities in southeastern Nigeria, was conducted. A 23-item self-completion questionnaire, designed in line with the objectives of the study, was used for data collection.
Results : The majority of the factors identified were strongly rated to contribute to the challenges of training except for unavailability of published programme curriculum. Multinomial logistic regression showed that the age of the students did not influence the rating of factors (p>0.05). Gender influenced the rating of high academic workload and tight scheduling of lectures and published programme curriculum is not interest-stimulating enough (p=0.008). The factor's rating by the males was higher than the females (3.23 ± 0.91 vs 3.00 ± 0.86. The institutions, where the students are domiciled, influenced their ratings of congested and not conducive classrooms (p<0.0001), and shortage of ICT facilities and e-learning packages (p=0.009). The students' level of study influenced the rating of 7 of the 18 factors investigated.
Conclusion : The challenges facing training and clinical skill acquisition of radiographers in southeastern Nigeria have been highlighted in this study. The challenges identified include inadequate infrastructure, difficult logistics, inadequate teaching aids, negative attitudes of trainers, and poor training methods.
Source: South African Radiographer 54, pp 15 –17 (2016)More Less
Inter-operator reproducibility of ultrasound measurement of three foetal biometric parameters : comparison of experienced sonographers and radiography interns : peer reviewed original articleSource: South African Radiographer 54, pp 22 –26 (2016)More Less
Background : The dearth of experienced sonographers in Nigeria has created an all-comers environment in which many would-be sonographers enter the field with minimal supervision giving rise to the question of competence of personnel and, often, the accuracy of results obtained.
Objective : To assess inter-operator reproducibility in the measurement by sonographers and radiography interns of three common foetal biometric parameters: bi-parietal diameter (BPD), femur length (FL), and abdominal circumference (AC).
Method : Twenty (n=20) women, carrying normal singleton fetuses of between 20 and 40 weeks gestational age, consented to participate in the study. They were evaluated in three ultrasound centers. Ultrasound scans were performed on all of them. Biometric measurements were obtained following standard protocols. Foetal biometric measurements (bi-parietal diameter (BPD, femur length (FL), and abdominal circumference (AC) were performed independently by one sonographer and one intern who were blinded to the purpose of the study and the figures of the other participant in each centre. Coefficient of variability percent was used to assess inter-operator variability. Intra-class correlation coefficient (ICC) at a 95% confidence interval was used as a metric to compute weighted kappa (Kw) to assess inter-operator reproducibility of measurements.
Results : Coefficient of variability (COV %) ranged from 0.84 - 1.79, and the mean coefficient of variability was below 2.0 % in all locations for all measured parameters. Intra-class correlation coefficient, indicating between operator agreement ranged from 0.95 - 0.98 for BPD, 0.90 - 0.91 for FL, and 0.92 - 0.99 for AC. The overall agreement for all centers was 0.94 ± 0.04; P=0.0001.
Conclusion : Sonographic measurements of fetal biometric parameters measures of experienced sonographers are highly reproducible by interns undertaking ultrasound training.
Author E. MagayaSource: South African Radiographer 54, pp 27 –29 (2016)More Less
Transient interruption of bolus contrast is a physiologic artefact due to a poor mixture of blood and contrast material. It is encountered when performing computed tomography pulmonary angiograms (CTPA). A working knowledge of this phenomenon is crucial to avoid a misdiagnosis of pulmonary embolism. A relatively high percentage (5-6%) of CTPA has been deemed inconclusive or technically insufficient due to poor contrast enhancement of the pulmonary arteries, which affects 40% of CTPAs. This case report describes this phenomenon and the setting in which it occurs. The patient's clinical history, radiological findings, appearance, and possible countermeasures, are described.
Source: South African Radiographer 54, pp 32 –33 (2016)More Less
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