SA Journal of Radiology - Volume 12, Issue 3, 2008
Volume 12, Issue 3, 2008
Author Annare EllmannSource: SA Journal of Radiology 12 (2008)More Less
In the previous issue of the SA Journal of Radiology, the Editor-in-chief of the journal expressed serious concerns about the future of positron emission tomography (PET) in South Africa - and not without reason. Business Day on 4 September 2008 reported that 'High-tech scan centres look set to sink'. According to this article, South Africas private PET-CT scanning centres are struggling to recoup their multi-million-Rand investments. This is happening in spite of international sentiments expressed regarding the 'unparalleled contribution of F-18 FDG PET to medicine over 3 decades'. PET-CT is battling to establish itself in South Africa, notwithstanding numerous reports confirming the cost-effectiveness of this modality by virtue of inter alia obviating unnecessary surgical procedures and ineffective chemotherapy regimens. The question of why this situation has developed in South Africa should be investigated.
Anterior approach v. posterior approach - ultrasound-guided shoulder arthrogram injection : original articleSource: SA Journal of Radiology 12, pp 60 –62 (2008)More Less
Anterior approach ultrasound-guided arthrogram injections are a quick and reliable way of injecting contrast medium prior to a shoulder MRI scan. A retrospective study on patients who we had previously injected and scanned at our clinic was undertaken, to compare the more documented posterior ultrasound-guided approach with the anterior approach. The success rate for successful intra-articular injections for the anterior approach far exceeds the posterior approach. Additionally, the anterior approach is better tolerated by patients as the injections are much quicker and apparently less painful. In our experience, therefore, it is far better from every viewpoint to perform anterior approach ultrasound-guided shoulder arthrogram injections rather than posterior injections.
Source: SA Journal of Radiology 12, pp 64 –68 (2008)More Less
We present a series of 12 patients in whom the typical ultrasound (US) features of parathyroid adenomas were accurately demonstrated. High-resolution ultrasound in experienced hands is a highly sensitive, accurate, safe and non-invasive method of localising parathyroid adenomas, especially in patients with typically located glands and an absence of thyroid pathology. Our aim was to show that US can be used as a first imaging modality in the detection of parathyroid adenomas.
A super 'lead pipe' colon : radio-pathological correlation of long-standing ulcerative colitis : case reportSource: SA Journal of Radiology 12, pp 70 –72 (2008)More Less
This report demonstrates the progression of a defunctioned colon in a patient with ulcerative colitis (UC), 20 years after ileostomy without colectomy. Long-segment stricture formation in UC is a more intensive local manifestation of a process involving the entire thickness of the wall of the bowel.
Source: SA Journal of Radiology 12 (2008)More Less
Positron emission tomography / computed tomography (PET / CT) with fluorine-18 fluorodeoxyglucose (F-18 FDG) is well established as a valuable tool in the staging and restaging of Hodgkin's and certain non-Hodgkin's lymphomas, including the assessment of response to treatment. Previously, the recommendations of the International Working Group were widely implemented. Response criteria have recently been revised by the International Harmonization Project to include new developments such as PET / CT, immunohistochemistry and flow cytometry.
Source: SA Journal of Radiology 12, pp 75 –76 (2008)More Less
Imaging plays a vital role in the staging and restaging of breast cancer. Traditionally, chest X-ray, bone scintigraphy and liver ultrasound or computed tomography are used. Fluorine-18 fluorodeoxyglucose (F-18 FDG) positron emission tomography / computed tomography (PET / CT) has great potential for whole-body staging with a single procedure. The greatest utility of PET / CT lies in distant or M-staging, whereas its role in locoregional staging is generally considered to be complementary to other modalities.
Source: SA Journal of Radiology 12, pp 77 –78 (2008)More Less
Schizencephaly is a rare CNS malformation consisting of a full-thickness CSF-filled parenchymal cleft lined by grey matter. Schizencephaly can be diagnosed on prenatal ultrasound but requires magnetic resonance imaging (MRI) for more specific diagnostic differentiation from other cerebrospinal fluid (CSF)-containing structures as well as for detection of associated features.