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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 serious about safe campuses
2011-02-09

Mr Willie Frankim, Head of Protection Services at the UFS, in the new control room on the Main Campus.
Photo: Dries Myburgh

The University of the Free State (UFS) officially launched its security control room recently. This new addition to the university's infrastructure, which was implemented in December 2010, has already made a contribution to the combating of crime at the UFS.

The decrease in crime statistics for January this year (5 cases), in comparison to the statistics of January 2010 (51 cases) is proof that the UFS’s new approach to combating crime on campus has an impact.
 
According to Prof. Niel Viljoen, Vice-Rector: Operations, the safety of students, lecturers and staff of the UFS is of the utmost importancet. For this reason, it is continuously reflected on about what can be done to improve the levels of safety for the respective campuses.
 
Apart from the upgraded security control room, from where, amongst others, residences, pedestrian routes, campus buildings, parking areas, entrances at gates and computer rooms at residences are observed, a number of measures have been set in place to improve the task of combating crime.
 
These measures include:
-       Security cameras in front of all the women’s residences. The UFS is in the process of also installing
        security cameras in front of the men’s residences.
-       Shrubs and trees that caused obstruction in front of cameras have been pruned.
-       Security officers patrol the pedestrian routes as well as the Red Square on foot from 06:00-22:00.
-       A security officer has been appointed at each residence to be on duty from 18:00 to 06:00
        at the residence.
-       Two vehicles patrol the Main Campus on a 24-hour basis.
-       The UFS is in die process to install alarms, which will be linked to the central security control room, 
        in all buildings.
-       In certain buildings panic buttons have been installed in strategic places.
-       Where possible, better entrance control to building, especially office blocks, has been implemented.
-       Better management and integration of the security workers who are contracted from outside.
        More security workers have also been appointed to do duty at each residence as well as on the
        pedestrian routes (during the hours indicated).
-       A survey has once again been done of all “dark spots” on the campus and better lighting is 
        currently being installed.
 
The reduced reaction times are a direct result of the operational process between security staff in the control room with met security staff that patrols the campus on foot and by vehicle


Media Release
09 February 2011
Issued by: Lacea Loader
Director: Strategic Communication (actg)
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

 

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