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9.3 Medical technology - Bionics 5. Non-invasive medical techniques

Syllabus reference (October 2002 version)
5. The use of non-invasive or minimally invasive medical techniques has greatly reduced risks to patients and has increased our understanding of how the body works Students learn to: Students:

Extract from Senior Science Stage 6 Syllabus (Amended October 2002). © Board of Studies, NSW.

 

Prior learning: Preliminary modules 8.4 (subsections 1, 2, 3, 4, 5 and 6)

Science Stages 4-5 syllabus: Outcomes 4.8 (content 4.8.1 a, b, c, d; 4.8.4 b, c, d and 4.8.5 a, b), Outcome 5.8 (content 5.8.1 a), Outcome 5.12 (content 5.12 d, f, g)

Background: Before the development of aseptic techniques by Joseph Lister (1827-1912) surgery hardly seemed worthwhile. At least one-third of the patients died and most of the surviving patients suffered horrible complications through infections such as septicaemia, tetanus and gangrene. As surgery moves into the 21st century, new minimally invasive and non-invasive techniques are gaining popularity. These techniques are designed to minimise both the risks of infection and the recovery time of the patient.


identify data sources, gather, process, analyse and present information to discuss the advantages and disadvantages of non-invasive and minimally invasive medical techniques

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discuss the terms non-invasive and minimally invasive in relation to medical techniques

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identify non-invasive diagnostic techniques including X-rays, ultrasound, thermography, and magnetic resonance imaging (MRI) and discuss their importance in diagnostic medicine

X-rays

Ultrasound

Thermography

Magnetic resonance imaging (MRI)

How Magnetic Resonance Imaging (MRI) Works (external website) Howstuffworks, Inc., USA

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describe the advantages of using minimally invasive surgery techniques such as keyhole surgery

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gather, process and analyse information and use available evidence to discuss how technological developments have impacted on the understanding of how the body works

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