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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

Law postgraduate student awarded IAWJ and Faculty of Law bursary
2017-03-02

Description: Association of women judges gala dinner 2017 Tags: Association of women judges gala dinner 2017


The University of the Free State Faculty of Law, in conjunction with the International Association of Women Judges (IAWJ) South Africa Chapter, hosted a gala dinner on 25 February 2017, in Bloemfontein, to raise awareness on the development programmes that women judges in South Africa, and specifically in the Free State, are involved in.

Focus on development of upcoming legal professionals
The event was a glamorous occasion attended by high-ranking officials in the Free State judiciary and Faculty of Law staff and students. Central to the evening’s events was the launch and presentation of the IAWJ/UFS Faculty of Law bursary that was presented to Mbali Mathebula, who is enrolled for an LLM at the UFS in 2017. Judge Mahube Molemela, Judge-President of the Free State High Court, and Chancellor of the Central University of Technology (CUT), presented the bursary to Mbali, commending her for choosing a poignant research thesis that focused on the rights of children with disabilities in South Africa. Judge Molemela expressed the importance of perseverance through study, and self-development as the key to a successful career in Law.

Transformation in the legal profession still a challenge
Some of the speakers of the evening included Prof Caroline Nicholson, Dean of the Faculty of Law and programme director, Judge Soma Naidoo, who gave introductory remarks, and Judge Mandisa Maya. In her remarks, Judge Maya outlined some of the prevailing challenges that women judicial officers still face, despite decades of reforms in the legal profession. She said: “Women in the judiciary are torchbearers who inspire and empower others, especially young women, and should strive to achieve high moral standards and exceptional scholarship.”

IAWJ mentors upcoming legal professionals
Judge Naidoo said the association had, over the past seven years, partnered with universities such as UFS, University of Pretoria (UP), University of South Africa (Unisa) and University of Cape Town (UCT) to support students through social outreach programmes. She noted the involvement of corporates and other legal professionals as key to their success. Judge Naidoo said the IAWJ had been instrumental in providing training for legal professionals in areas such as trafficking in persons across the Southern African Development Community (SADC), supported by the US Embassy in Pretoria, and had held health and wellness programmes for legal officers around the country.

The gala dinner was a celebration of the successes of the association over the years, and an opportunity to reflect on the important issues that women face in the legal profession, as well as a call to action for students and young legal professionals. The proceeds from the evening will be used to further mentor and develop law students around the country.

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