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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

New guidelines to increase diversity in student residences at the UFS
2007-06-08

As from 2008, the University of the Free State (UFS) will implement new policy guidelines for student residences so as to increase diversity on the Main Campus of the UFS in Bloemfontein.

These new policy guidelines were approved by the Council of the UFS today (Friday 8 June 2007) after consultations with a range of stakeholders, especially students currently in residences, student leaders and student organisations, with inputs received from alumni and parents as well.

According to a statement by the Chairperson of the UFS Council, Judge Faan Hancke, and the Rector and Vice-Chancellor of the UFS, Prof. Frederick Fourie, the guidelines are based on an educational rationale with a definite educational objective.

“What the UFS seeks to do with these new policy guidelines, is to overcome the racial divides of the past and equip students in residences with the knowledge and skills to understand people from other cultures, appreciate other languages and to respect differences in religion but also economic background,” Judge Hancke and Prof. Fourie said in their statement.

“This will give students in UFS residences a distinct advantage over many other work seekers in South Africa, because the workplace today is a very diverse place with people of many backgrounds,” Judge Hancke and Prof. Fourie said in their statement.
They said the UFS wanted to establish a new model of residence life in which students will voluntarily embrace diversity and learn about diversity so as to add value to their educational experience in a residence.

In the late 1990s the UFS made the first attempt to integrate its residences which led to violent clashes between white and black students. A compromise agreement was reached based on freedom of association but this has over the years led to the current situation of largely white and largely black residences.

To support students during the implementation of the new policy guidelines, the management of the UFS will establish several mechanisms and programmes for students to empower them, to build their capacity and to facilitate a smooth transition to a new model of student life in the residences.

Judge Hancke and Prof. Fourie said the decision is another important milestone in the ongoing transformation of the UFS and in the provision of quality higher education for all UFS students, and that the decision had been taken in the best interests of the students.

“This is a very carefully managed transition to bring about a non-racial character to our student residences in line with the Constitution and the ethos of a democratic South Africa,” Judge Hancke and Prof. Fourie said.

How the new policy will work in practice

As from 2008, the new policy aims to bring about an important shift in the way first-years are placed in a residence. From 2008 first-year students are to be placed to achieve a minimum diversity level of 30% in each junior residence.

In senior residences a mix of approximately 50-50 will be the goal from 2008.
Residences will be responsible for placing 50% of first-years, which gives them the scope to increase diversity. The university’s accommodation service will place the other 50%. All these placements must occur in accordance with the educational rationale and the related diversity objective.

If a residence cannot reach the diversity objectives, the university will use the 50% of placements that it controls to achieve sufficient diversity in a particular residence.

Support mechanisms for students

According to Dr Ezekiel Moraka, Vice-Rector: Student Affairs, students in the residences will not be left on their own to deal with the issues of diversity. The management of the UFS has identified several important areas where the process may need support, especially in the early stages of implementation. Students and student leadership will be involved in the further design and finalisation of the implementation details.

These areas where support will be finalised are the following:

  • Providing properly trained and qualified personnel (such as live-in wardens, residence heads etc.) to supervise the implementation of the policy on a 24-hour basis;
  • Ongoing orientation workshops for all students in residences to deal with diversity in a mature way;
  • Support to deal with language issues, including interpreting services so that language rights of all students can be respected; and
  • Assistance with the review of residence governance, administrative and other procedures that have been used in residences up to now.

“There can therefore be no doubt that the management is committed to the well-supported and successful implementation of this new policy and to giving the best possible education to all our students,” Judge Hancke and 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
8 June 2007
 

 
 

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