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Swi aplication
- 1. BS. Cao Thi棚n 意動畛n乙
- 2. Reichenbach, Haacke et al. 1997 MR venography ho畉c BOLD venographic imaging T畛 1997 2003 Nhi畛u bi b叩o l但m sng Haacke et al. 2004 SusceptibilityWeighted Imaging =SWI Siemens b畉t 畉u 動a vo 叩p d畛ng t畛 2007.
- 3. SWI l k畛 thu畉t MRI s畛 d畛ng s畛 kh叩c bi畛t v畛 畛 nh畉y t畛 Lm r探 c叩c m畉ch m叩u nh畛 v t挑nh m畉ch n達o Nh畉y v畛i s畉t v 坦ng v担i Haacke, Mark, et. al. Magnetic Resonance in Medicine 52:612618 (2004)
- 4. Thu 動畛c = chu畛i xungT2* 畛 lm tng nh狸n r探 c叩c kh叩c bi畛t v畛 nh畉y t畛. Gradient-echo 3D li gi畉i cao (c坦 b湛 d嘆ng hon ton) TE di (~40ms 畛 1.5T, ~25ms 畛 3T) 畛 thu 動畛c h狸nhT2* + H畉u x畛 l箪 ngoi s畛 d畛ng h狸nh 畉nh phase. Magnitude Phase
- 5. 1. T畉o ra m畛t h狸nh 畉nh phase cao t畉n 2. D畛ng h狸nh m畉ng l畛c pha b狸nh th動畛ng h坦a (normalized phase mask) 3. Tng c動畛ng h狸nh 畉nh bi棚n 畛 v畛i m畉ng l畛c pha 畛 thnh SWI 4. T湛y ch畛n: t畉o h狸nh h動畛ng c動畛ng 畛 t畛i thi畛u (minimum intensity projection) 畛 thnh h狸nh SWI minIP 3T
- 7. T畛 tr動畛ng Flip angle TR (ms) TE (ms) 1.5T 20 50 40 3T 12 30 20 4T 12 25 15 7T 10-15 25 10-15 C叩c tham s畛 SWI 畛 m叩y 3T BVCR (Skyra, Siemens) TR: 28ms, TE: 20ms, FA: 15, BW 120 Hz/pixel, 畛 ph但n gi畉i kh担ng gian: 0.3 x 0.3 x 1.2mm3, FOV 220mm Th畛i gian kh畉o s叩t trung b狸nh ~ 5 ph炭t.
- 8. H狸nh phase H狸nh bi棚n 畛 SWI
- 9. 3T 1.5T
- 12. 1. T挑nh m畉ch v叩ch trong su畛t 2. T挑nh m畉ch v但n 畛i th畛 3. T挑nh m畉ch nh但n u担i tr動畛c 4. T挑nh m畉ch b棚n tr畛c ti畉p 5. T挑nh m畉ch ng叩ch gi畛a 6. T挑nh m畉ch n達o trong 7. T挑nh m畉ch Galen
- 13. H畛 th畛ng thu畉n tay ph畉i (GE) H畛 th畛ng thu畉n tay tr叩i (Siemens) T鱈n hi畛u h狸nh 畉nh pha c叩c ch畉t c畉n t畛 (nh動 hemosiderin) T畛i S叩ng T鱈n hi畛u h狸nh 畉nh pha c叩c ch畉t ngh畛ch t畛 (nh動 calcium) S叩ng T畛i Ph但n bi畛t t鱈n hi畛u v担i v畛i t鱈n hi畛u m畉ch m叩u/m叩u. M叩y Siemens (h畛 th畛ng thu畉n tay tr叩i )
- 14. M叩y Siemens 3T (h畛 th畛ng thu畉n tay tr叩i)
- 16. Xu畉t huy畉t: t畛i tr棚n h狸nh SWI v s叩ng tr棚n h狸nh 畉nh pha
- 17. 畉nh gi畉 畛 giao di畛n kh鱈-m担 l nh畛ng v湛ng gi畉m t鱈n hi畛u 畛ng t但m C叩c thi畉t b畛 c畉y gh辿p b畉ng kim lo畉i SWI l h狸nh 畉nh b畛 sung cho c叩c h狸nh 畉nh MRI th動畛ng qui kh叩c Th畛i gian kh畉o s叩t di
- 19. 畛t qu畛 D畛 d畉ng m畉ch m叩u n達o Ch畉n th動董ng s畛 n達o C叩c b畛nh tho叩i h坦a th畉n kinh-r畛i lo畉n v畉n 畛ng U n達o . . .
- 21. Nathaniel D. Wycliffe, JMRI 20:372377 (2004)
- 36. Ngu畛n: Susceptibility weighted imaging : New MR sequences in daily practice. A pictorial essay, Hyunkoo Kang, M.D., Department of Radiology, Seoul Veterans Hospital. ASNR 2013 Annual Meeting
- 38. M叩u t畛 d動畛i mng c畛ng m畉n
- 39. Xu畉t huy畉t n達o th畉t v khoang d動畛i nh畛n
- 40. GRE vs. SWI
- 42. L畉ng 畛ng feritin trong nh但n 畛, ch畉t en, nh但n b竪o v v畛 n達o x董 c畛ng c畛t b棚n teo c董
- 43. C叩c y畉u t畛 d畛 b叩o tr棚n MRI v畛 ph但n 畛 u n達o g畛m b畉t thu畛c, ph湛, hi畛u 畛ng cho叩n ch畛, nang ho畉c ho畉i t畛, xu畉t huy畉t, ho畉t 畛ng chuy畛n h坦a v th畛 t鱈ch m叩u n達o. SWI c坦 th畛 叩nh gi叩 tri畛t 畛 c畉u tr炭c b棚n trong c畛a u nh畉n di畛n c叩c 畛 xu畉t huy畉t v 坦ng v担i H狸nh 畉nh SWI sau ti棚m cho ph辿p ph但n bi畛t c叩c lo畉i ny.
- 45. C畉u tr炭c b棚n trong c畛a u grade cao
- 46. a b Ngu畛n: Susceptibility weighted imaging : New MR sequences in daily practice. A pictorial essay, Hyunkoo Kang, M.D., Department of Radiology, Seoul Veterans Hospital. ASNR 2013 Annual Meeting
- 47. a b Ngu畛n: Susceptibility weighted imaging : New MR sequences in daily practice. A pictorial essay, Hyunkoo Kang, M.D., Department of Radiology, Seoul Veterans Hospital. ASNR 2013 Annual Meeting
- 51. SWI l chu畛i xung nh畉y t畛 動u th畉 h董n GRE, gi炭p ph叩t hi畛n vi xu畉t huy畉t, 坦ng v担i SWI 畉c bi畛t nh畉y trong 叩nh gi叩 c叩c t挑nh m畉ch/m畉ch m叩u nh畛. Ph叩t hi畛n s畉t gi炭p ch畉n o叩n c叩c b畛nh l箪 tho叩i h坦a th畉n kinh SWI sau ti棚m Gd 動u th畉 h董nT1W trong 叩nh gi叩 u n達o. SWI c坦 畛ng d畛ng a d畉ng v ang ph叩t tri畛n
- 52. 1. Robinson, Bhuta, Susceptibility-Weighted Imaging of the Brain: Current Utility and Potential Applications, Journal of Neuroimaging Vol 21 No 4 October 2011 2. BC Ong and SL Stuckey, Susceptibility weighted imaging: A pictorial review, Journal of Medical Imaging and Radiation Oncology 54 (2010) 435449 3. Roberto Gasparotti, Lorenzo Pinelli & Roberto Liserre, New MR sequences in daily practice: susceptibility weighted imaging. A pictorial essay, Insights Imaging (2011) 2:335347. 4. D.R. Hingwala et al., Susceptibility weighted imaging in the evaluation of movement disorders, Clinical Radiology 68 (2013) e338-e348 5. Nair et al., High-Resolution Susceptibility-Weighted Imaging at 3T With a 32-Channel Head Coil:Technique and Clinical Applications, AJR 2010; 195:10071014 6. Thomas B el al., Clinical applications of susceptibility weighted MR imaging of the brain - a pictorial review, Neuroradiology, 2008 Feb;50(2):105-16
- 53. Tr動畛c khi u畛ng c ph棚 Sau khi u畛ng c ph棚