slides - Brainmapping.ORG
slides - Brainmapping.ORG
slides - Brainmapping.ORG
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Inversion Recovery<br />
Inversion Recovery<br />
• Key Features<br />
– Signal Preparation Block<br />
• 180° RF Inversion Pulse<br />
• TI – Inversion Time [ms]<br />
– Signal Measurement Block<br />
• Spin Echo or Gradient Echo<br />
• Signal during imaging is dependent on<br />
– T1 and TI<br />
• TR is typically long (>2000ms)<br />
– Better for 2D sequences<br />
• Can null a single T1 species if<br />
– TI=ln(2)T1=0.69T1<br />
• Can be used for quantitative T1 mapping<br />
62<br />
Radiology<br />
Inversion Pulses<br />
Inversion Recovery<br />
Radiology<br />
Radiology
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