Meet Our Clinical Team
Experienced clinicians bringing specialist diagnostic expertise, clinical leadership and patient-centred care to UKSONO Healthcare.
Christopher U. Agu
Consultant & Clinical Lead Sonographer
Clinical Lead Sonographer – NHS London
MSc Medical Ultrasound • PGCert Head & Neck Ultrasound & FNA • PGCert MSK Ultrasound • PGDip Medical Ultrasound • PGCert CT • BSc Medical Radiography
Consultant Sonographer and clinical leader with over 10 years of diagnostic imaging experience across NHS tertiary, acute-care and independent healthcare. Christopher specialises in Head & Neck ultrasound and ultrasound-guided FNA, with advanced practice across MSK, vascular, abdominal, pelvic, breast, small-parts and obstetric imaging. He leads clinical governance, service development and diagnostic quality across UKSONO Healthcare.
Professional registration & memberships: HCPC • SoR • BMUS • BIR • FMF
Rachel Leon
Advanced Practitioner Sonographer
Specialist in gynaecology, abdominal, small parts, DVT, and paediatric ultrasound. Former Clinical Lead Sonographer at a major London NHS Trust.
Esther Joy
Healthcare Assistant
Provides patient support, clinical preparation and chaperoning, ensuring a safe, calm and reassuring experience for all visitors.
Dr David Annan
Consultant Radiologist • Advisory Role
Consultant Radiologist at Barts Health NHS Trust with specialist expertise in Head & Neck and Musculoskeletal Radiology. Provides advisory oversight for complex imaging.
Ivy Okereke
Director of Breast Screening • Advisory Role
Consultant Radiographer & Director of Breast Screening at Maidstone & Tunbridge Wells NHS Trust. Advises UKSONO on breast imaging governance and pathways.
Christopher Uchechukwu Agu is a Consultant & Clinical Lead Sonographer with over 10 years of diagnostic imaging experience across NHS tertiary, acute-care and independent healthcare.
He is a Clinical Lead Sonographer (Head & Neck) at Barts Health NHS Trust, working within a major London NHS service alongside specialist diagnostic ultrasound practice across private and independent healthcare.
His specialist practice is centred on Head & Neck ultrasound and ultrasound-guided fine-needle aspiration (FNA), complemented by advanced experience in musculoskeletal, vascular and Doppler, abdominal and pelvic, breast and small-parts, gynaecological, obstetric and fetal-medicine ultrasound. His work includes complex diagnostic assessment, clinical reporting and multidisciplinary collaboration.
Christopher has held senior ultrasound roles across Barts Health NHS Trust, Royal Free London NHS Foundation Trust and East Kent Hospitals University NHS Foundation Trust. Alongside clinical practice, he has substantial experience in clinical governance, SOP development, audit, service improvement, quality and safety, teaching, supervision and mentorship of sonographers and medical trainees.
Qualifications: MSc Medical Ultrasound; PGCert Head & Neck Ultrasound & FNA; PGCert Musculoskeletal Ultrasound; PGDip Medical Ultrasound; PGCert Computed Tomography; BSc Medical Radiography & Radiological Sciences.
Registration & professional memberships: Health and Care Professions Council (HCPC), Society of Radiographers (SoR), British Medical Ultrasound Society (BMUS), British Institute of Radiology (BIR) and Fetal Medicine Foundation (FMF).
Rachel Leon is an Advanced Practitioner Sonographer with extensive experience in gynaecology, GI/abdominal, small parts, DVT and paediatric imaging.
She previously served as Clinical Lead Sonographer at a major London NHS Trust and has worked in multiple high-demand ultrasound units across the UK and internationally.
Esther is responsible for patient support, examination preparation, infection control and chaperoning. She ensures each patient receives a calm and positive experience.
She maintains high clinical preparation standards and supports sonographers during ultrasound procedures.
Dr David Annan is a Consultant Radiologist at Barts Health NHS Trust specialising in Head & Neck and Musculoskeletal Radiology.
He performs a wide range of imaging including ultrasound, CT, MRI and image-guided interventions. He leads the Head & Neck radiology service at Whipps Cross Hospital.
Ivy Okereke is Director of Breast Screening and Consultant Radiographer at Maidstone & Tunbridge Wells NHS Trust.
She oversees NHS breast screening pathways and performs advanced interventional procedures. Ivy advises UKSONO Healthcare on governance and best practice.
