ANAT30007 Lecture Notes - Lecture 10: Sound, Ionizing Radiation, Alarp

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plumdeer622

10 Jun 2018

School

University of Melbourne

Department

Anatomy and Neuroscience

Course

ANAT30007

Professor

Varsha Pilbrow

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compression and expansion causes a vibration in the crystal, which generates a sound wave;

generates a voltage from incoming sound

•

dots indicate reflection of sound

•

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Fluid within gallbladder doesn't reflect sound, but stones do reflect, and not much sound

passes through stones

•

No ionising radiation

•

Cheaper than CT

•

Freely available

•

Solid v cystic

•

Pros

Operator dependent (handheld probe)

•

Fat

○

Bone

○

Gas

○

Sound penetration problems

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Cons

Children

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Pregnancy

•

Screening for abdominal systems especially GB

•

Pelvic pathology in girls

•

Small parts - thyroid, testis, salivary glands, breast (lol small)

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Musculo-skeletal especially muscles, tendons and ligaments

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Blood vessels (Doppler)

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Uses

Very strong magnet and radio wave generator

•

Emission of FM radio waves

○

Proton density and microenvironment of those protons

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Radio receiver

•

Computer monitor/film

•

Magnetic Resonance Imaging - MRI

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Document Summary

Compression and expansion causes a vibration in the crystal, which generates a sound wave; generates a voltage from incoming sound dots indicate reflection of sound. Fluid within gallbladder doesn"t reflect sound, but stones do reflect, and not much sound passes through stones. Small parts - thyroid, testis, salivary glands, breast (lol small) Locomotor page 12 required to house mri machine to provide protection from strong magnetic field. Joints for pain, bones where x-rays not helpful. Liver and biliary tree where us not helpful. Accumulation of radiopharmaceutical chemical interaction with organ/tissue emission of rays. In1902, ernest rutherford described three different kinds of radiation that emitted in the decay of radioactive substances. Rays are penetrating - very similar to x-rays but of slightly higher frequency collimator only accepts radiation of a certain energy. Accumulation of radiopharmaceutical in the organ of interest c/w rest of the body. Bones for occult trauma or tumour (commonly looking for metastatic disease)

Related Questions

9. Write a method with the following header public static void replace (String oldFile, string newfile, char oldChar, char newChar) throws IOException This method opens the file whose name is given by the String parameter oldFile (the input file) for reading, and opens the file whose name is given by the string parameter newlile (the output file) for writing. It then reads every lime in the input file. For each line, it creates a new line identical to the original line, creept for the fact that all occurrences of char oldchar in the original String have been replaced by occurrences of char newchar in the new line. When the new line has been properly created, it write it to the output file. Once all the lines in the input file have been read and a corresponding line has been written to the output file, the method clases both files. 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ANAT30007 Lecture Notes - Lecture 10: Sound, Ionizing Radiation, Alarp

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