File Download
Supplementary
-
Citations:
- Appears in Collections:
Conference Paper: Minimizing power of RF pulse by genetic algorithm
| Title | Minimizing power of RF pulse by genetic algorithm |
|---|---|
| Authors | |
| Issue Date | 2006 |
| Publisher | The International Society for Magnetic Resonance in Medicine (ISMRM) |
| Citation | The International Society for Magnetic Resonance in Medicine 14th Scientific Meeting & Exhibition (ISMRM2006). Seattle, WA, 6-12 May 2006, p. 2042 How to Cite? |
| Abstract | In excitation phase of MRI, there is only a very small portion of the RF pulse energy used for rotating the net magnetization, most of them are deposited into
the imaging object as heat. So, reducing the RF pulse power can effectively decrease the heat deposited. In this work, genetic algorithm is introduced to
minimize the power of RF pulse in the pulse design procedure, while keeping the excited profile almost unchanged. Simulation result showed that the power
of RF pulse can be reduced by about 17% using GA minimization, while the excitation profile homogeneity almost has no change. |
| Persistent Identifier | http://hdl.handle.net/10722/99655 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Pang, Y | en_HK |
| dc.contributor.author | Wang, C | en_HK |
| dc.contributor.author | Shen, GG | - |
| dc.date.accessioned | 2010-09-25T18:39:04Z | - |
| dc.date.available | 2010-09-25T18:39:04Z | - |
| dc.date.issued | 2006 | en_HK |
| dc.identifier.citation | The International Society for Magnetic Resonance in Medicine 14th Scientific Meeting & Exhibition (ISMRM2006). Seattle, WA, 6-12 May 2006, p. 2042 | en_HK |
| dc.identifier.uri | http://hdl.handle.net/10722/99655 | - |
| dc.description.abstract | In excitation phase of MRI, there is only a very small portion of the RF pulse energy used for rotating the net magnetization, most of them are deposited into the imaging object as heat. So, reducing the RF pulse power can effectively decrease the heat deposited. In this work, genetic algorithm is introduced to minimize the power of RF pulse in the pulse design procedure, while keeping the excited profile almost unchanged. Simulation result showed that the power of RF pulse can be reduced by about 17% using GA minimization, while the excitation profile homogeneity almost has no change. | - |
| dc.language | eng | en_HK |
| dc.publisher | The International Society for Magnetic Resonance in Medicine (ISMRM) | - |
| dc.relation.ispartof | The International Society for Magnetic Resonance in Medicine Scientific Meeting & Exhibition (ISMRM) | en_HK |
| dc.title | Minimizing power of RF pulse by genetic algorithm | en_HK |
| dc.type | Conference_Paper | en_HK |
| dc.identifier.email | Shen, GG: gxshen@eee.hku.hk | en_HK |
| dc.identifier.authority | Shen, GG=rp00166 | en_HK |
| dc.description.nature | published_or_final_version | - |
| dc.identifier.hkuros | 121342 | en_HK |
| dc.identifier.spage | 2042 | en_HK |