Reconstruction of absorption images by decoupling reflection losses and tissue absorption from attenuation measurements

Forschungsthema/Bereich

Medical ultrasound imaging

Typ der Abschlussarbeit

Bachelor / Master

Startzeitpunkt

01.09.2026

Bewerbungsschluss

31.08.2026

Dauer der Arbeit

6 months

Beschreibung

Currently 3D Ultrasound Tomography (USCT) reconstructs attenuation images from the measured signal data by an Algebraic Reconstruction Technique (ART). A straight ray approximation is used and the attenuation of the sound wave is detected from the acquired signal data. Yet, the detected attenuation of a signal consists of a reflection loss due to scattering and a tissue specific absorption. Especially the tissue specific absorption is of interest for medical interpretation since it is known from literature that certain absorption behavior (often modeled by the power absorption law) is indicative for tumor tissue. In this thesis the aim is to explore potential methods to reconstruct the absorption part from the attenuation measurements only, i.e. to separate reflection losses from absorption either on signal basis or in the image space. Methods should first be evaluated on simple synthetic examples, e.g. based on k-Wave simulations before applying them to experimental data.

Voraussetzung

Voraussetzungen an Studierende

• Interest in medical imaging, ultrasound, and (MATLAB) programming

Studiengangsbereiche

• Ingenieurwissenschaften
  Elektrotechnik & Informationstechnik
  Mechatronik & Informationstechnik
  Biomedical Engineering
  Electrical Engineering and Information Technology
  Mechatronics and Information Technology
  Medizintechnik
• Naturwissenschaften und Technik
  Geophysik
  Physik
  Geophysics
  Physics

Betreuung

Titel, Vorname, Name

Dr. Torsten Hopp and PD Dr. Nicole Ruiter

Organisationseinheit

IPE

E-Mail Adresse

nicole.ruiter@kit.edu

Link zur eigenen Homepage/Personenseite

Website

Bewerbung per E-Mail

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E-Mail Adresse für die Bewerbung
Senden Sie die oben genannten Bewerbungsunterlagen bitte per Mail an nicole.ruiter@kit.edu


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