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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

The King’s Singers: British double Grammy winners hosted by OSM
2017-01-24

 Description: The Kings Singers Tags: The Kings Singers

The King’s Singers regularly tour in Europe, North and
South America, Asia and Australasia. The group will be
performing in Bloemfontein on 14 February 2017.
Photo: Andy Staples

The King’s Singers, the acclaimed British a cappella vocal ensemble, are coming to Bloemfontein, hosted by the Odeion School of Music at the University of the Free State, for an unmissable performance.

Concertgoers from Bloemfontein and surrounding areas have the opportunity to experience this extraordinary vocal ensemble at the Dutch Reformed Church Universitas at a concert sponsored by the Arts Trust.

Named after King’s College in Cambridge, the group was formed in 1965, and for the past 48 years, their work, synonymous with the very best in vocal ensemble performance, appeals to a vast international audience.

The ensemble has performed for hundreds of thousands of people each season, and regularly tours Europe, North and South America, Asia and Australasia. Instantly recognisable for their immaculate intonation, vocal blend, diction and incisive timing, the King’s Singers are consummate entertainers.

The group’s repertoire has evolved to become one of the most diverse and compelling imaginable. They have commissioned more than 200 works, including landmark pieces from leading contemporary composers including Luciano Berio, György Ligeti, Sir James MacMillan, Krzysztof Penderecki, Toru Takemitsu, Sir John Tavener, Gabriela Lena Frank and Eric Whitacre. They have also commissioned arrangements of everything from jazz standards to pop chart hits, explored medieval motets and Renaissance madrigals, and encouraged young composers to write new scores.

In addition to performing to capacity audiences and creating highly regarded and much-loved recordings, the King’s Singers share their artistry at numerous workshops and masterclasses around the world.  

Double Grammy award-winning artists, the group were honoured in 2009 for their Signum Classics release, Simple Gifts, and again in 2012 for their contribution to Eric Whitacre’s Light and Gold album. Recently voted into Gramophone Hall of Fame, rave reviews and repeated sell-out concerts confirm that the King’s Singers are one of the world’s finest vocal ensembles.

Watch videos of the The King’s Singers:
The King's Singers - Overture The Barber Of Seville
2016 Pioneer Day Concert with The King's Singers - Primary Medley
A Christmas Songbook by The King's Singers

Date: 14 February 2017
Time: 19:30
Place: Dutch Reformed Church Universitas, Bloemfontein
Cost: R295 per person | R268 per person for group bookings of 10+

Tickets for the concert are available at Computicket outlets (Checkers, Shoprite shops), at the door, or online.

For inquiries or more information, contact Ninette Pretorius at +27 51 401 2504.

 

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