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Diagnostic yield of ultrasound-guided fine needle aspiration biopsy (US-guided FNAB) and post-surgical histopathological correlation of thyroid nodules in the Department of Radiology, Groote Schuur Hospital, Cape Town, South Africa over a two-year periodMatimati, Bornaventure 29 March 2023 (has links) (PDF)
Background: Nodular thyroid disease is common worldwide, and the incidence of thyroid nodules is increasing globally. Ultrasound (US)-guided thyroid nodule fine needle aspiration biopsy (FNAB) is a reliable and cost-effective method of distinguishing between benign and malignant nodules before major surgery is performed. Aims: The study aimed to establish the diagnostic yield of US-guided thyroid FNAB's done at Groote Schuur Hospital over two years and to correlate findings with histopathological results in those patients that underwent thyroidectomy. Objectives: The objectives were to establish the number of US-guided FNABs performed, the number of repeat FNABs and the number of patients who subsequently had thyroidectomy over two years. A further objective was to evaluate the diagnostic yield by comparing the cytology and histology results for patients that underwent thyroidectomy. Methods: This was a retrospective study of all patients referred for US-guided FNAB from 1 January 2018 to 31 December 2019. All patients with cytology results after FNAB and histology results after thyroidectomy, were included in the study. US-guided FNAB data was collected from the Picture Archiving and Communication System (PACS) and Radiology Information System (RIS), while cytology and histology data were obtained from the National Health Laboratory Services (NHLS). Results: A total of 236 patients were included in the study (220 females and 16 males), with ages ranging from 19 to 82 years. The diagnostic yield was 34-% on the first, 36-% on the second and 48-% on the third FNAB. Most of the US-guided FNABs were non-diagnostic (66- % on the first, 64-% on the second and 52-% on the third FNAB). A total of 107 patients (45 %) had a repeat FNAB, while 23 patients (9.7-%) had a second repeat FNAB. A total of 48 patients (20.3-%) underwent thyroidectomy. Cancer was detected in 29/236 (12.3-%), of which 17/29 (59-%) were papillary thyroid carcinomas. There was no significant correlation between FNAB results and post-surgical histopathological results in patients who underwent thyroidectomy, with a p value of .15. Conclusion: The overall cancer rate of 12.3-% was comparable with that of other institutions. 66-% of US-guided FNABs were non-diagnostic, while 34-% were diagnostic on the first FNAB with 45-% requiring a repeat second FNAB. The assistance of a cytopathologist during the biopsy has been known to result in fewer non-diagnostic results, avoiding repeat attempts. Further diagnostic and cost-effective analysis of cytopathology assistance in the US-guided FNAB for characterising thyroid nodules is advised.
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Endovascular treatment of post-traumatic carotid-cavernous fistulae with latex detachable balloonsSzkup, Piotr 05 September 2023 (has links) (PDF)
Carotid cavernous fistula (CCF) is an abnormal connection between the carotid artery and the cavernous sinus. The CCF's are usually classified in three ways: 1. Pathologically, as spontaneous or traumatic; 2. Hemodynamically, into high-flow or low-flow; or 3. Angiographically, as direct or indirect. The Barrow angiographic classification is most commonly used. It is based on the pattern of arterial supply and has therapeutic implications.
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Investigation of Multicomponent MRI Relaxation Data with Stochastic Contraction Fitting AlgorithmRussell, Mary Elizabeth 09 July 2014 (has links)
No description available.
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AEC – Is It All That?Cherry, Shirley J. 10 October 2006 (has links)
No description available.
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Radiation Protection OverviewCherry, Shirley J. 10 October 2006 (has links)
No description available.
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Radiation Protection ReviewCherry, Shirley J. 01 July 2012 (has links)
No description available.
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Accreditation SeminarCherry, Shirley J. 01 April 2007 (has links)
No description available.
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Help!! – I’m Stressed Out!”Cherry, Shirley J. 20 March 2004 (has links)
No description available.
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What Techs WantCherry, Shirley J. 01 October 2012 (has links)
No description available.
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Radiographic Pathology of the Skeletal SystemCherry, Shirley J. 10 April 2010 (has links)
No description available.
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