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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

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Graduates challenged to fulfil their leadership obligations
2017-12-08


 Description: 2017 December summer graduation Tags: 2017 December summer graduation 

Photo: Johan Roux

Graduation videos

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6 December: Morning
6 December: Afternoon
7 December: Morning
7 December: Afternoon

A total number of 1 226 qualifications, including diplomas, certificates, and degrees, were conferred during the two days of the 2017 End-of-Year Graduation Ceremony which took place on the Bloemfontein Campus of the University of the Free State (UFS). Forty doctorates and 109 master’s degrees were awarded. Most doctorates (19) were awarded in the Faculty of Natural and Agricultural Sciences which  also conferred the biggest number of master’s degrees (27).

Celebrating excellence
Some of the highlights at this year’s graduation ceremonies were when the university honoured Prof Paul Holloway and Marius Botha with honorary doctorates and Joyene Isaacs with the Chancellor’s Medal. 

Isaacs, Head of the Department of Agriculture in the Western Cape, who was nominated by the Centre for Sustainable Agriculture in the Faculty of Natural and Agricultural Sciences for the Chancellor’s Medal, said: “Agriculture is one of those areas people take for granted. With this medal, agriculture can come to the fore. Agriculture is placed in the spotlight and it is important for this country, but also globally, because we look after the food supply. For me agriculture has been a sustainable livelihood but also a career. Everything about agriculture excites me! I hope that through this award I can take agriculture to the next level.”

Prof Holloway, internationally acclaimed expert in the science and technology of surfaces, thin films, and nanoparticles, who received the Honorary Doctorate in Science degree, said: “This award recognises the efforts we (the UFS and the University of Florida in the US) have jointly developed. We introduced the UFS to phosphors and today it (the UFS) has world-wide recognition expertise in this field. We also learnt from them. They brought us technology we did not have before. It was a mutual growth technique and we all benefit from that. If you work together you can achieve remarkable things.”

“It is the greatest honour of my life. I’ve been associated with the UFS for 17 years in the capacity of moderator, examiner and sometimes lecturer.” These were the words of Botha, author and expert in the financial planning circles of South Africa who was nominated for an honorary degree by the School of Financial Planning Law.

Botha told graduates that a qualification in the financial planning field would give you many opportunities. “If you enter almost any financial services organisation in South Africa, you will find senior people there that completed the postgraduate diploma in Financial Planning Law at the UFS,” he said.

During a luncheon that was hosted by Prof Francis Petersen, the UFS Rector and Vice-Chancellor, in honour of these esteemed graduates, he thanked them for the contribution they had made, not only for the UFS, but for advancing science, technology, and the better of society. “The Honorary degrees and Chancellor’s Medal are the highest accolades and recognition that the university can bestow on individuals who have excelled in science or scholarship or have contributed to service to this country. You are exemplary individuals and you make the UFS, our country and the world proud,” he said. 

 Description: 2017 Summer Graduation read more Tags: 2017 Summer Graduation read more 

Photo: Johan Roux

Inspiration for the future
Likeleli Monyamane, a UFS Council member, addressed graduates during the morning ceremony on 6 December 2017. She motivated graduates to walk tall and learn to serve our country. “Finding your voice comes with a responsibility to speak for those who do not have a voice,” Monyamane said. 

Leah Molatseli, who launched South Africa’s first legal e-commerce website, Lenoma Legal, was the guest speaker at the afternoon session on 6 December 2017. “You are going to start afresh. It is going to feel like you know absolutely nothing and it’s ok. You need to make peace with that in order for you to learn. 

“A lot of young people expect instant success when they enter a job. I am 29 and have had three jobs, two side jobs and numerous certificates. But I decided to create my own future. That is what I did with Lenoma Legal. Some people are meant to be ordinary and some extraordinary,” said this young entrepreneur and Kovsie Alumnus.

On the second day of the graduation ceremonies Dr Imtiaz Sooliman, founder and Director of the Gift of the Givers Foundation, challenged the newly graduated alumni to be carriers of hope for Africa. “We need people of skill, spirituality and heart,” he said. 

“How do you want others to believe in you if you don’t believe in yourself? We South Africans, we can make things happen. Believe in yourself,” he said. 

“The best science you can do is for others. The moment you achieve that, you mean something to someone,” he said. 

Prior to dissolving the congregations, Dr Khotso Mokhele, the Chancellor of the UFS, said: “It has taken hard work, commitment, dedication, to walk across the stage. You deserve all of that.” 

Interesting facts of the graduation
Among the graduates at these ceremonies was former Miss World 2014, Rolene Strauss. She received a Bachelor of Medicine and Bachelor of Surgery Degree. 

The Faculty of Natural and Agricultural Sciences is also very proud of the first group of BAgric students who graduated on the Agricultural College Programme. The eight agriculture students all received the Bachelor of Agriculture degree, majoring in Agricultural Management.

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