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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

FF Plus court case against UFS withdrawn
2007-10-23

The University of the Free State (UFS) is pleased to announce that a Supreme Court application to have the racial integration of its student residences set aside has been withdrawn unconditionally by the Freedom Front Plus (FF+). The political party has offered to pay the assessed costs of the UFS.

The Rector and Vice-Chancellor of the UFS, Prof. Frederick Fourie, welcomed this decision by the FF+, saying all energy should now be focused on making a success of this very important nation-building initiative in the student residences. “We have been convinced all the time that we had followed a fair and inclusive consultation process which led to a thorough and well-considered decision by the Council,” he said.

The decision to integrate student residences as from January 2008 was approved by the UFS Council on 8 June 2007. This last decision was confirmed by the Council – which is the highest decision making body at the UFS -  on 14 September 2007 with an overwhelming majority, with only one vote against.

“There is now no legal obstacle to student participation in the work being done to implement Council’s decision. In fact I want to urge all students in our residences to play an active role in implementing Council’s decision,” he said.

According to Prof. Fourie much work has been done in preparation for the intake of first-years into the residences in January 2008.

Since the initial decision of 8 June 2007, the Vice-Rector: Student Affairs, Dr Ezekiel Moraka, has been leading a team of staff members and student representatives who are doing work in various sub-task teams.

“One of the main reasons for working in this way through sub-task teams, is to ensure the widest possible participation of the affected students in the implementation of the Council’s decision,” said Prof. Fourie.

These sub-task teams are working on aspects of residence life in order to make the racial integration of residences as successful as possible. These aspects of residence life include, among others:
 

  • governance structures
  • traditions and character of residences
  • diversity education and training
  • security
  • placement and recruitment

“This list is not exhaustive, but merely to illustrate the kinds of areas being looked into. I would like to encourage all students in residences to make an input into the work of these sub-task teams through the primes, the Student Representative Council (SRC) or through the offices of the Dean or the Deputy Dean of Student Affairs.

“We have already begun to implement an interpreting service at the house meetings of three ladies residences, namely Emily Hobhouse, Roosmaryn and Vergeet-my-nie. From next year this service will be extended to other residences on the Main Campus,” said Prof. Fourie.  

“In the light of withdrawal of the court case, I am appealing to all students in our residences, to join hands with fellow students and with management in creating a campus of respect and appreciation for all languages, cultures and backgrounds,” he said.

“We want our students to assist the UFS in successfully managing the rich diversity on this campus, particularly in its student residences, and in so doing become an example to South Africa of a truly non-racial, multi-cultural and multi-lingual campus, where students are appropriately educated for the workplace,” Prof. Fourie said.


Media release issued by:        
Lacea Loader
Assistant Director: Media Liaison  
Tel:  051 401 2584
Cell:  083 645 2454
E-mail:  loaderl.stg@ufs.ac.za

23 October 2007

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