Semen H.

I am a Board-Certified Physician Radiologist (MD) and Healthcare Administrator (MHA) practicing at Ukraine’s premier tertiary medical facility (Feofaniya Clinical Hospital). I combine deep clinical diagnostic experience across 3.0T/1.5T MRI and Multislice CT with technical proficiency in medical image segmentation and AI training data curation. Over the past years, I have interpreted thousands of cross-sectional imaging studies, completed over 30 official Siemens Healthineers accreditations (MR physics, pulse sequences, cardiac MRI, and DICOM architecture), and participated in international academic forums including the European Congress of Radiology (ECR 2026, Vienna). WHAT I OFFER MEDTECH STARTUPS, AI LABS & CROs: 1. Gold-Standard Ground-Truth Annotation & 3D Segmentation: • Pixel- and voxel-level semantic/instance segmentation using 3D Slicer, ITK-SNAP, and custom annotation platforms. • Complex anatomical delineations: Brain tumor subregions (enhancing core, edema, necrosis), acute stroke ischemic penumbra, cardiac chambers & myocardium, liver lesions, prostate (PI-RADS), and full spine (vertebrae, discs, spinal cord). • Multi-modal alignment (CT, MRI T1/T2/FLAIR/DWI/DTI, Contrast-enhanced phases). 2. Clinical Trial Independent Image Review (CRO / Pharma): • Quantitative tumor burden assessment using RECIST 1.1, mRECIST, RANO, and Lugano classification. • Baseline vs. follow-up target/non-target lesion measurement, nadir tracking, and progression audit. • Strict adherence to GCP/ICH compliance and trial imaging charters. 3. AI Model Validation, Edge-Case Auditing & QA: • Clinical sanity checks on model inferences to detect false positives, contrast-phase misunderstandings, and motion artifacts. • Protocol design and expert feedback for engineering teams building computer vision pipelines. • Python-based DICOM metadata verification and cohort curation. KEY HIGHLIGHTS & CREDENTIALS: • Medical Degree (MD, Physician) – Bogomolets National Medical University. • Master of Healthcare Administration (MHA) – Shupyk National Healthcare University. • Board-Certified in Radiology and Diagnostic Roentgenology (CT / MRI). • 30+ Siemens Healthineers Certifications: syngo MR (XA61A, XA70A, XB10A, Free), Cardiac MRI Triggering & Imaging Planes, Advanced Pulse Sequences. • Fellowships & CME in Advanced Neuroimaging (ASL, fMRI, DTI, MRS), Cardiac MRI/CT, and MSK trauma. Available for hourly contracts and milestone-based projects. Let's connect to discuss how high-fidelity clinical ground truth can accelerate your model's accuracy and regulatory compliance.