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20 February 2024 | Story Lacea Loader | Photo SUPPLIED
Prof Bob Frater
The late Prof Robert Frater, after whom the Robert WM Frater Cardiovascular Research Centre at the UFS was named.

The Robert WM Frater Cardiovascular Research Centre (the Frater Centre) at the University of the Free State (UFS) received the sad news of the passing of Prof Robert (Bob) Frater at the age of 95 on 29 January 2024 in New York. 

“Prof Frater was and will continue to be regarded as an international icon in heart surgery, especially in mitral valve repair where he described the use of artificial chordae, which is still the international standard today.  Since 2006, he has been intimately involved in the establishment of the research programme in the Department of Cardiothoracic Surgery at the UFS, which culminated in the establishment of the Frater Centre in 2015. This would not have been possible without the combined efforts of the UFS and the generous financial support by Glycar – a Pretoria-based company established by Prof Frater,” says Prof Francis Smit, Director of the Robert WM Frater Cardiovascular Research Centre and Head of the Department of Cardiothoracic Surgery at the UFS.

Prof Frater was born in Cape Town and attended Bishops Diocesan College from 1937 to 1946. He excelled at school, both academically and as a sportsman. He was a prefect, captained the tennis team, and played first team rugby. He studied medicine at the University of Cape Town (UCT), achieving a first class in Surgery. He qualified as a cardiothoracic surgeon at the Mayo Clinic and after a stint back in Cape Town, spent the rest of his illustrious career at the Einstein and Montefiore university hospitals in New York. Despite this distance, Prof Frater always maintained and cherished his South African roots, palpably demonstrated by his notable collection of Africana books and art.

“He was an inspiring mentor and educator, and constructively influenced generations of cardiothoracic surgeons trained at the UFS and internationally. His enthusiasm for scientific research and deep understanding of heart valves and tissue engineering have largely determined the research focus of the Frater Centre to this day.  He received an honorary doctorate in Medicine from the UFS in 2011 in recognition of his immense contributions to cardiothoracic surgery during his lifetime. Apart from his international recognition and awards, the other outstanding award he received and cherished in South Africa, was the Robert Gray Medal from his old school, Bishops Diocesan College,” says Prof Smit.

At the UFS, he was Prof Smit’s promotor for his PhD on human heart valve transplants (homografts) and inspired an additional five PhD studies (four of which addressed tissue engineering, and one in re-designing a poppet mechanical heart valve, which was named the Frater valve).  Studies on heart valve mechanics and hydrodynamics conducted at the Frater Centre in support of these valve developments resulted in three cum laude Master of Engineering degrees awarded by Stellenbosch University.  Over time, the Robert WM Frater Cardiovascular Research Centre’s research output steadily increased in scope and quality, mainly due to the values of curiosity, excellence, integrated interdisciplinary collaborative teams, integrity, and mutual respect instilled by Prof Bob Frater.

“Prof Frater was always received ostentatiously in Bloemfontein. The registrars crowded around him, our research team was inspired, wisdom was gained from his vast experience in surgery and research, and no-one was left untouched by the deep humanity of this remarkable man. He was truly an exceptional individual, and a memorable South African.”

We wish to express our sincerest condolences and deepest sympathy to his wife Eileen, sons Hugh, Dirk, and the rest of the family,” says Prof Smit.

News Archive

Mathematical methods used to detect and classify breast cancer masses
2016-08-10

Description: Breast lesions Tags: Breast lesions

Examples of Acho’s breast mass
segmentation identification

Breast cancer is the leading cause of female mortality in developing countries. According to the World Health Organization (WHO), the low survival rates in developing countries are mainly due to the lack of early detection and adequate diagnosis programs.

Seeing the picture more clearly

Susan Acho from the University of the Free State’s Department of Medical Physics, breast cancer research focuses on using mathematical methods to delineate and classify breast masses. Advancements in medical research have led to remarkable progress in breast cancer detection, however, according to Acho, the methods of diagnosis currently available commercially, lack a detailed finesse in accurately identifying the boundaries of breast mass lesions.

Inspiration drawn from pioneer

Drawing inspiration from the Mammography Computer Aided Diagnosis Development and Implementation (CAADI) project, which was the brainchild Prof William Rae, Head of the department of Medical Physics, Acho’s MMedSc thesis titled ‘Segmentation and Quantitative Characterisation of Breast Masses Imaged using Digital Mammography’ investigates classical segmentation algorithms, texture features and classification of breast masses in mammography. It is a rare research topic in South Africa.

 Characterisation of breast masses, involves delineating and analysing the breast mass region on a mammogram in order to determine its shape, margin and texture composition. Computer-aided diagnosis (CAD) program detects the outline of the mass lesion, and uses this information together with its texture features to determine the clinical traits of the mass. CAD programs mark suspicious areas for second look or areas on a mammogram that the radiologist might have overlooked. It can act as an independent double reader of a mammogram in institutions where there is a shortage of trained mammogram readers. 

Light at the end of the tunnel

Breast cancer is one of the most common malignancies among females in South Africa. “The challenge is being able to apply these mathematical methods in the medical field to help find solutions to specific medical problems, and that’s what I hope my research will do,” she says.

By using mathematics, physics and digital imaging to understand breast masses on mammograms, her research bridges the gap between these fields to provide algorithms which are applicable in medical image interpretation.

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