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Diagnostics of Ultrasound Resolution, Contrast & Safety
KTH, School of Engineering Sciences (SCI).
KTH, School of Engineering Sciences (SCI).
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

As ultrasound is the most common method for medical imaging, a lot of money could

be saved if the equipment were cheaper. A problem is that the cheaper available

scanners are less documented.

To evaluate a scanner bought for the institution of applied physics, three categories

were pondered. The resolution, contrast and safety of the scanner was of most interest.

In order to provide results several measurements were performed. Screws of different

dimensions were used for evaluating the resolution, whereas different materials

were observed for the contrast. A method to investigate safety was tried by applying

the ultrasound probe to water and measuring the transferred heat.

Results of the measurements ended up showing that the resolution was about four

times lower when comparing with a commercial scanner. The contrast has a large

dependence on the difference of acoustic impedance between object and medium.

Lastly, a groundwork for investigating the safety was made.

Place, publisher, year, edition, pages
2016. , 18 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-195826OAI: oai:DiVA.org:kth-195826DiVA: diva2:1045577
Available from: 2016-11-10 Created: 2016-11-10Bibliographically approved

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