Journal of medical imaging and radiation oncology
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J Med Imaging Radiat Oncol · Feb 2009
Value of apparent diffusion coefficient measurement for discrimination of focal benign and malignant hepatic masses.
The purpose of our study was to investigate the value of diffusion-weighted magnetic resonance imaging (DW-MRI) to discriminate benign and malignant focal lesions of the liver using parallel imaging technique. A total of 77 patients and 65 healthy controls were enrolled in the study. DW-MRI was performed with b-factors of 0, 500 and 1000 s/mm(2), and the apparent diffusion coefficients (ADC) values of the normal liver and the lesions were calculated. ⋯ However, there was no statistically significant difference between HCC and metastases. The present study showed that ADC measurement has the potential to differentiate benign and malignant focal hepatic lesions. We propose to add DW sequence in the MR protocol for the detection and quantitative discrimination of hepatic pathologies.
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J Med Imaging Radiat Oncol · Feb 2009
Case ReportsCerebral hyperperfusion syndrome post-carotid artery stenting.
Cerebral hyperperfusion syndrome is increasingly recognized as a complication in carotid artery stenting for severe internal carotid artery stenosis. This study reviews the cases of hyperperfusion syndrome occurring after this procedure. We reviewed our database of 170 cases of internal carotid artery stenting carried out at our hospital between January 1999 and June 2006. ⋯ In our series, large intracerebral haemorrhage has occurred only in patients who have been treated early. Cerebral hyperperfusion is an uncommon but serious complication post-carotid stenting. Further studies comparing early treatment of endarterectomy and carotid stenting are awaited.
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J Med Imaging Radiat Oncol · Dec 2008
ReviewBenign cardiac tumours: cardiac CT and MRI imaging appearances.
Primary benign cardiac tumours are rarely found in clinical practice and are generally evaluated with echocardiography. However, with the increasing usage of helical multislice CT, the initial detection and evaluation of these masses may be made by the radiologist during routine daily practice for other indications. The echocardiographic, CT and cardiac MRI appearances of various benign cardiac tumours and masses are described and illustrated in this review.
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J Med Imaging Radiat Oncol · Dec 2008
ReviewNon-contact paediatric knee injuries, including patellar sleeve fractures.
Different patterns of injury of the knee are seen in children and adults, particularly in non-contact injuries. Examples of these are given, including the important patella sleeve fracture.
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J Med Imaging Radiat Oncol · Dec 2008
Survey of the learning activities of Australasian radiation oncology specialist trainees.
Trainee radiation oncologists must master a substantial body of skills and knowledge to become competent specialists. The resources available to support this are limited. We surveyed the 90 registrars enrolled in the Royal Australian and New Zealand College of Surgeons (RANZCR) radiation oncology training programme to obtain a range of information about their learning activities (with a significant focus on part 1 teaching). ⋯ This compared with only 19% of respondents who felt that more teaching was required for part 2 exam preparation. Innovative solutions, such as centralized web-based teaching, may help to address weaknesses in part 1 teaching. With increasing demands on radiation oncologists and trainees it will be important to monitor learning environments.