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15 September 2022 | Story André Damons | Photo André Damons
Dr Osayande Evbuomwan, Prof Willy Vangu and Dr Gerrit Engelbrecht
Dr Osayande Evbuomwan, nuclear medicine specialist and Senior Lecturer, left, and Dr Gerrit Engelbrecht, Clinical Head of the Department of Nuclear Medicine at the UFS, right, with Prof Willy Vangu, Chief Specialist and Head of Nuclear Medicine at the University of the Witwatersrand, after his lecture.

There is no doubt that an institution like the University of the Free State (UFS), with its calibre and pedigree, needs a PET/CT machine (medical-imaging device that simultaneously and clearly reveals both anatomical details and metabolic processes within the body), particular in oncology, in improving the management of patients. 

This is according to Prof Willy Vangu, Chief Specialist and Head of Nuclear Medicine at the University of the Witwatersrand, who was a guest lecturer on 8 September 2022 at the Department of Nuclear Medicine at the UFS.

Positron emission tomography (PET) is a type of nuclear medicine imaging modality that measures the metabolic activity of the cells of body tissues. PET imaging is useful in the evaluation of patients with neurological, cardiac, infection, inflammation, and most importantly oncological conditions. Through its ability to detect metabolic changes very early, it can detect disease conditions that might not be easily detected on other forms of anatomical imaging.

Role of PET/CT in different clinical scenarios

In his lecture, Prof Vangu talked about the role of PET/CT in different clinical scenarios. By giving practical examples, he explained the role of PET/CT in different aspects of clinical medicine, including brain imaging for dementia, movement disorder and cerebrovascular reserve. 

“Looking at dementia, we will focus on one of diseases that is today becoming a major source of health concern, Alzheimer's disease. The latest Alzheimer's report that was published in 2018 stated that there are 50 million individuals currently suffering from Alzheimer's. They forecast that in 30 years we are going to have more than 150 million people suffering from this disease. PET/CT imaging can identify very early the typical patterns associated with all the different types of dementias, including Alzheimer's disease…”

For cardiac application, Prof Vangu said there are so many indications for PET/CT in cardiac imaging. One of the most important is the assessment of myocardial viability, in patients who have suffered from cardiomyopathy due to ischemic heart disease. PET/CT offers a noninvasive method of identifying viable myocardium that would benefit from revascularisation, with a very high diagnostic accuracy. 

Prof Vangu, who is also the head of nuclear medicine at the Charlotte Maxeke Johannesburg Academic and Chris Hani Baragwanath hospitals as well as head of the department for radiation sciences at the University of the Witwatersrand, said PET has been around for many years and is not something new. However, in clinical practice, PET imaging became significant with a breakthrough that occurred with the production of the glucose analogue tracer, 18F-fluorodeoxyglucose (FDG). This tracer in PET/CT imaging has revolutionised the management of cancer patients for the oncologist. It offers the ability of more accurate cancer staging, assessment of treatment response, assessment of disease recurrence and in some situations, surveillance. It has the ability to predict early which cancer patients will benefit from a particular drug, thereby giving the oncologist an idea on either to de-escalate treatment or change to a second line regimen very early on in the management. 

PET-CT scan imaging machine

An internet example of an image taken by a PET/CT machine. Photo for illustration: A PET/CT Imaging machine.


PET/CT came onto the market only in the year 2001, when it was launched for the first time by David Townsend (a physicist) and Ronald Nutt (electrical engineer). As at today, almost every institution in the country has at least one PET/CT machine.


“Looking at clinical applications, which is really the crux of the lecture today, there are so many clinical applications to talk about. You need a full week of a PET/CT symposium to go through all of them (and) maybe that might not even be enough. We can at least from this talk have an idea on how PET/CT can be applied in clinical medicine,” said Prof Vangu.

No other road for the university but to get a PET/CT machine

He also showed the impact and results that PET/CT imaging had in the management of infection and inflammation including TB. He said the role of PET/CT in TB is for monitoring of treatment, identification of extrapulmonary TB and prognosis. 

In concluding his lecture, he said there is no other road for the university but to get a PET/CT machine. “There is no argument about it. The institution needs it to improve the management of patients, especially the oncology and cardiology patients. Confidently making the decision on which patients to treat, how to treat them, identifying and evaluating their true response to therapy requires a PET/CT machine.

“I am happy to hear that the policy- and decisions-makers in the province and the university are looking forward to having a PET/CT machine,” he said later. 

Dr Osayande Evbuomwan, nuclear medicine specialist and Senior Lecturer, and Dr Gerrit Engelbrecht, Clinical Head of the Department of Nuclear Medicine at the UFS, are both looking forward of having a PET/CT in the department because in addition to its use in clinical setting, it has a huge role to play in research and training postgraduate students, as PET/CT imaging makes up a huge chunk of the postgraduate training curriculum

News Archive

UFS awards honorary doctorates during its centenary week
2004-10-07

The University of the Free State (UFS) will award 12 honorary doctorates on Thursday 14 October 2004 to a diverse group of outstanding South Africans and international experts.

This will be the last in a group of 18 honorary doctorates that the UFS will be awarding in its centenary year.

The awards comprise of a number of well-known language experts and writers, experts in higher education, first-time awards in community service and development studies, as well as music.

“This reflects quality and also diversity, a spectrum of convictions as well as the recognition of persons who played a major role in changing society in the last couple of decades, “ says Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS.

The awards can be grouped in the following categories:

Language and literature:

Mr Karel Schoeman (D Litt (hc)) – well-known Afrikaans author and former student of the UFS. Some of the awards he has received include the Hertzog prize for prose (1970, 1986 and 1995), the CNA prize (1972 and 1994), the Old Mutual prize (1985 and 1991), the SABC prize for best television drama in 1990, the M Net book prize in 1997 and the State President award (former President Nelson Mandela: Order for Excellent Service – silver) in 1999. It is an honor for the UFS to have this gifted and creative person among its former students. This conferment is a fitting recognition of his status as leading South African writer.

Ms Antjie Krog (D Litt (hc)) – well-known South African poet and former student of the UFS. Her popularity as poet is evident in her piercing honesty and unequalled power of expression. Some of the awards she has received include the Eugéne Marais prize in 1973, the Rapport prize in 1987, the Hertzog prize in 1990 and the RAU prize in 2000. Her writing has been translated into seven languages. She has also received numerous honors for her involvement in and journalistic documentation of the Truth and Reconciliation Commission’s (TRC) proceedings. It is therefore an exceptional privilege for her alma mater to honor her with an honorary doctorate.

Prof Jaap Steyn (D Litt (et phil) (hc)) – recently, Prof Steyn again distinguished himself as biographer whose thorough research is apparent in the published biographies of illustrious writers such as NP van Wyk Louw and MER. The numerous awards, among which the Stals prize from the South African Academy of Science and Art for the Van Wyk publication, are a matter of record. He conducted the research for this great prize-winning work as honorary professor at the UFS.

Prof Jakes Gerwel (D Phil (hc)) – Chancellor of the University of Rhodes and Director of Naspers, Old Mutual, Gold Fields and Brimstone. His doctoral thesis was published in The Netherlands under the title Literatuur en apartheid. Konsepsies van “gekleurdes” in die Afrikaanse roman tot 1948 (1983). He received an honorary doctorate from Clark College ( Atlanta), the City University of New York and Missouri in the USA, the University of the Western Cape, the University of Cape Town, the University of Natal, Rhodes University, the University of Stellenbosch and the University of the Witwatersrand. He is also outstanding professor in the Humanities at the University of the Western Cape, honorary professor in the Humanities at the University of Pretoria, and was the chairman of the Human Sciences Research Council (HSRC).

Development Studies:

Dr Frederick van Zyl Slabbert (D Phil (hc)) – for his academic achievements, his endeavors for bringing about a peaceful transition in South Africa and his demonstration of the social investment role of the corporate sector. Dr Van Zyl Slabbert has received honorary degrees from the University of Natal and the Simon Fraser University in Canada. He has published seven books and various academic articles.

Community Service:

Prof Robert G Bringle (D Phil (hc)) – from the Indiana University-Purdue University Indianapolis (IUPUI) in the USA. He is currently Chancellor’s Professor of Psychology and Philanthropic Studies at the IUPUI and also Director of the IUPUI’s Centre for Service Learning. He is honored for his exceptional contribution to several of the UFS’s community service projects as well as his role in the advancement of a multi- and inter-disciplinary approach to academic development and the integration of service learning within the faculties of the UFS. He has also made a valuable contribution to the conceptual framework of the UFS’s unique community service policy and more recently to the advancement of a research culture regarding community service.

Higher education:

Dr Khotso Mokhele (D Phil (hc)), President of the National Research Foundation (NRF) is honored for his contribution to the South African higher education sector. He has also made a substantial contribution to the development of the research capacity of universities and technikons in South Africa. Dr Mokhele was born in Bloemfontein and matriculated at the Moroka High School in Thaba Nchu.

Prof Saleem Badat (D Phil (hc)), the Chief Executive Officer of the Council on Higher Education (CHE). Prof Badat has devoted himself to transforming and building South African higher education, and has constantly challenged the higher education sector to retain the moral basis of higher education and tackle its challenges with intellectual honesty, ingenuity, creativity and courage. He is honored for his intellectual leadership in the development of a equitable, just and quality higher education system in South Africa.

Law:

Prof HA (Boelie) Wessels (D Legum (hc)) – for his contribution to the fields of Roman Law, Legal History at the UFS. He is currently a part-time lecturer at the UFS’s Faculty of Law.

Medicine:

Prof CJC Nel (D Phil (hc) Posthumous) – for the way in which he strived for the advancement of excellent medical education in the country. Prof Nel also did pioneering work in the field of transformation in higher education. Under his guidance the School of Medicine at the UFS became one of the first medical schools to adopt a parallel-medium system of instruction.

Music:

Prof Leo Quayle (D Mus (hc)) – for the significant contributions he has made to the development of music – not only in Bloemfontein, but also on national level and abroad. His initiative, enthusiasm and dedication contributed to the eventual founding of the Free State Musicon, as well as the first symphony orchestra and the first string quartet in Bloemfontein. Prof Quayle is a former head of the Department of Music at the UFS.

Prof Jack de Wet (D Mus (hc)) – well-known for his exceptional contribution to violin tuition in South Africa. As pedagogue of international stature, he still moulds violinists who compete at national and international level. At an advanced stage of his career, he still actively conveys his knowledge, experience and distinctive insight in his field of speciality to yet another new generation of young violin teachers. Today the symphony orchestras in Bloemfontein and Port Elizabeth also stand on the foundations laid by him.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
7 October 2004

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