Claire Nieuwoudt
Lead Advanced Cardiac Physiologist
A highly specialised Cardiac Physiologist, Claire's expertise is in advanced echocardiography having worked within the NHS and private sector. Claire trained at the Glenfield Hospital, qualifying as a Cardiac Physiologist in 2001, promoted to Senior Cardiac Physiologist by 2003, and an Advanced Cardiac Physiologist by 2005. In 2004 she achieved transthoracic accreditation with the British Society of Echocardiography.
Claire has been working at an advanced level for many years, training, mentoring and supervising others throughout their training and accreditation process. After becoming Head of Echocardiography at Salisbury District Hospital, where she developed services, promoting high standards was Claire's priority.
After returning to the Midlands 10 years ago, and working at the Glenfield Hospital until 2016, Claire moved to Royal Derby Hospital where she has, until recently, worked as an Advanced Cardiac Physiologist leading several areas including audit.
Claire strongly believes in the highest standards of quality and care, and this is the philosophy at the heart of Your Heart Scan, "I have always found the heart fascinating, being able to look inside people’s hearts is a privilege I will never tire of".
Riaan Nieuwoudt
Advanced Cardiac Physiologist
With over 20 years of experience in cardiology, Riaan brings a deep passion for heart health and patient care to every aspect of his work. He began his career in South Africa, where he received world-class training and experience before bringing his expertise to the UK, working across both NHS and private healthcare sectors.
A proud member of the British Society of Echocardiography (BSE), Riaan is especially passionate about echocardiography. He’s known for his warm, approachable manner and takes great pride in making patients feel at ease, listened to, and truly cared for.
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Beyond his clinical work, Riaan is dedicated to training both students and trainee cardiologists, helping shape the future of the profession with the same enthusiasm he brings to every patient interaction.
When he’s not in the clinic, you’ll find Riaan staying active and healthy through his love of sports and fitness—living proof of his commitment to heart health, inside and out.
Daleen Blay
Advanced Cardiac Physiologist
Daleen is a highly specialised Advanced Cardiac Physiologist with over 30 years of experience within cardiology, working in both the NHS and Private Healthcare. She trained in South Africa at one of the leading training hospitals, qualifying in 1993 from where she started working within the Private Cardiology field.
She became the first South African to achieve her echocardiography accreditation with the European Society of Cardiology in 2011.
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Daleen was the lead Cardiac Physiologist in two private practices for 23 years where she managed all Cardiology services and trained junior Physiologists, guiding them through accreditation. She started working for a Private Healthcare company in England in 2016, becoming Chief Cardiac Physiologist in 2019.
She has a passion for training and has mentored many students through their British accreditation in Echocardiography. Her specialised field is in Advanced Transthoracic Echocardiography, but she is also qualified in: Pacemaker/ICD testing and adjustments, ECG and stress ECG testing and interpretation and Carotid Doppler assessment.
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Daleen’s passion has always been in Cardiology and patient care, this is visible in her professionalism, expertise and kind and caring nature.
Boyang Liu
Imaging Specialist Consultant Cardiologist
Boyang is a Consultant Cardiologist with additional expertise in imaging of the heart using echocardiography, MRI scanning, and CT scanning. Boyang earned his undergraduate medical degree (BA Hons) at the University of Cambridge and achieved proxime accessit to the University of London Gold Medal for securing the top position during clinical training at Bart’s Medical School (MBBS).
​He then went on to obtain a PhD in Cardiology from the University of Birmingham.​ His clinical training encompassed house officer roles in medicine and surgery in London, followed by core medical training at University Hospitals Birmingham. Boyang became a member of the Royal College of Physicians, UK, and obtained a national training number in cardiology (West Midlands, UK). He later assumed the role of Consultant Cardiologist at the North West Heart Centre, Manchester University NHS Foundation Trust, a leading cardiac centre offering specialised services to 3.2 million people.
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Boyang specialises in the diagnosis and treatment of adult cardiac conditions, holding additional expertise and accreditation (EACVI, BSE, BSCI) in three modes of advanced cardiac imaging:​​​
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Echocardiography (transthoracic, transoesophageal, stress echo, peri-procedural echo)
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Cardiac MRI
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Cardiac CT
Beyond his clinical responsibilities, Boyang has a distinguished record of contributing to cutting-edge medical research, particularly in the fields of cardiac imaging for assessing heart valve disease, optimal timing of treatment, and non-ischaemic heart conditions.
Nyree Petitjean
Clinical Operations Coordinator
Nyree brings over 20 years of experience within the NHS, with a significant background in Learning Disability Services, where she supported patients in accessing essential healthcare. She later expanded her clinical expertise as an Audiology Assistant Practitioner.
Throughout her career, Nyree has maintained a strong people-focused approach, empowering individuals to take an active role in their own health.
Being of service to others and supporting their health and wellbeing is at the core of everything she does. Nyree brings this compassion, dedication, and clinical insight to her role as Clinical Operations Coordinator.
Trish Constable
Administrator & Telephone Support
Trish trained as an RGN in adult care, in Derby, qualifying in 1990 and initially working on a surgical ward for 5 years. She then moved to Intensive Care where she worked as a Staff Nurse for 9 years before becoming a Sister in Critical Care for the next 10 years.
Her priorities have always been on providing a high quality of care delivered with empathy and full confidentiality.
She retired from Nursing in 2014 and has since enjoyed time with family and pursuing hobbies. Feeling the need to make use of her extensive medical experience she joined our team as admin and telephone support in 2023.
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