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28 April 2020 | Story Andre Damons | Photo Supplied
During a recent training session at the ASC. From the left, front: Marisa Viljoen and Noleen Seris; back: Prof Lauren Franz, Dr Nokhutula Shabalala, and Dr David Griessel (Unit Director).

Greta Thunberg, the 17-year-old climate and environmental activist who identifies as autistic, calls her autism a superpower. And it might just be this superpower that saves the world. 

Celebrating the strengths of autism
With April being Autism Month, it is a good time to celebrate the strengths of autism, says Dr David Griessel, Director of the University of the Free State Autism Support Centre (ASC), and a registered developmental paediatrician in the UFS Department of Paediatrics and Child Health. This includes a no-nonsense, direct thinking, and ‘outside the box’ way of looking at life, which is not mired in wishful thinking and false hope.

The Autism Support Centre was initiated by Dr Griessel, who has a special interest in neonatal intensive care, perinatal care, neuro-developmental evaluation in high-risk babies, neuro-developmental behavioural problems and learning difficulties, autism spectrum disorders, and the ethics of neuro-disability. The centre is under the auspices of the ‘Make the first 1 000 days count’ project and is located on the UFS Bloemfontein Campus.

According to Dr Griessel, the current pandemic is asking questions of us as society. “Questions about what is really important to us as humans. Whether we can really keep on expanding and consuming as if tomorrow does not exist. The inconvenient fact is that our encroachment on the habitat of wild animals bring us in contact with wild animals, and although bats are very resistant to viruses, we are not,” says Dr Griessel.  

Dr Griessel says Greta does not care about social codes, and directly asks of us: “How dare you steal my dreams and my childhood with your empty words; our homes are on fire.”

Children with autism need significant support 
“If we, as so-called neuro-typical parents, caregivers, and society can accept and support them, they add to the richness and complexity of life. The first person described in the medical literature, Donald T, had a full and eventful life, but financial support and a small community who had his back, were real enablers!”

“In this time of lockdown, my thoughts go out to parents and the challenges they may face at home. There are wonderful resources available from Autism SA, which may help them navigate these uncertain times. When we listen to Greta, a thought springs up – maybe autism will save the world.” 

A first in Africa
The Early Start Denver Model (ESDM), a first in Africa, was recently presented at the ASC and is now used to support therapists, caregivers, and patients with autism and related disorders.

This model is one of the so-called naturalistic developmental behavioural interventions, which attempts to change the core features of autism. They all share the idea that normal developmental forces should drive the process of interaction between caregiver and child; this has been  to be effective in different controlled trials.

Three registered ESDM therapists, together with Prof Lauren Franz from Duke University in North Carolina as mentor, visited Bloemfontein at the end of 2019 to become accredited trainers. Colleagues from Tanzania as well as attendees from all over South Africa have visited the centre before.

The unit is also being used by two local therapists, Elize van Rensburg and Angela Correia, to achieve reliability in this therapy. Furthermore, the unit is used as a therapy centre and for ADOS (Autism Diagnostic Observation Schedule) evaluations – the gold standard for diagnosis.

 

An inside view of the Autism Support Centre on the Bloemfontein Campus of the University of the Free State (UFS).

Supporting families as caregiversAutism South Africa has adapted a guide from the Frank Porter Graham Child Development Institute at the University of North Carolina on the support of individuals with autism through uncertain times.

Individuals with autism may need additional support to process the news and adapt to the many changes.  This population may face additional challenges related to comprehension, communication, difficulty understanding abstract language, an insistence on sameness, and a greater likelihood of anxiety and depression – all of which may be exacerbated during this stressful period. 

The following seven support strategies are designed to meet the unique needs of individuals with autism during this period of uncertainty.  

• Supporting understanding
• Offering opportunities for expression
• Prioritising coping and calming skills
• Maintaining routines
• Building new routines
• Fostering connections (from a distance)
• Being aware of changing behaviours

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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