Lich su SA tim
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Transcript of Lich su SA tim
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LCH S SIEU AM TIMPGS.TS PHAM NGUYEN VINHT lau, ngi ta a nhan thay di bay tm moi c du trong em toiLazzaro Spallanzani (1 973) thc nghiem : du bt mat, di van bay tm moi c.Hartridge (1920) a ra gia thuyet : di phong ra song sieu am.Ludwig & Struthers (l949) : dung song sieu am do soi mat va vat la trong c cua cho.Wild va Reid (l 952) chan oan 18 ca u vu bang sieu amEdler & Hertz au tien ng dung echo tim :o vach tim (1953), tran dch mang tim (1954)l 955 : anh gia va theo doi sau mo hep hai la1 955 : tm ra u nhay nh trai bang sieu am.T l 956 : tinh the thach anh c thay bang barium titanate
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LCH S SIEU AM TIM
Hertz & Olofsson (1960) : may sieu am tim 2 chieu (bi-dimensional echocardiograph) Bom (l972) : Hoan thien sieu am 2 chieu Hsu Chih Chang (1961) lam sach au tien ve sieu am chan oan My : nghien cu sieu am t l961 (Reid & Joyner)Feigenbaum (1963) : o cung lng that bang sieu am Satomura (1956) : ng dung Doppler vao tim Liv Hattle (Na Uy) (l 970) co cong ln trong ng dung lam sang Doppler Omoto (l 982) Doppler mau.
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM PGS.TS PHAM NGUYEN VINH Cac ky thuat sieu am tim- SAT qua thanh ngc- SAT qua thc quan- SAT trong buong tim- SAT trong long mach mau- SAT trong long ong mach vanh- SAT thai nhi- SAT 3 chieu
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Cac v tr ngc e khao sat sieu am 4 mat cat c ban.KY THUAT KHAM NGHIEM BANG SIEU AM TIM
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V tr cua au do ng cat canh c ben trai.KY THUAT KHAM NGHIEM BANG SIEU AM TIM
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V tr cua au do ng cat t mom tim.KY THUAT KHAM NGHIEM BANG SIEU AM TIM
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V tr cua au do ng cat di sn.KY THUAT KHAM NGHIEM BANG SIEU AM TIM
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V tr cua au do ng cat tren hom c.KY THUAT KHAM NGHIEM BANG SIEU AM TIM
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
- Sieu Am mot chieu (TM - Time motion echocardiography)
- Sieu am 2 chieu (2D - Bi dimensional echocardiography)
- Sieu am Doppler :* Doppler xung* Doppler lien tuc* Doppler mau
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Khao sat TM ngang van MC
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Khao sat TM ngang that trai. Cac tr so buong tim o c giup lng gia chc nang tim. TTTTr - TTTTh PXCR = --------------------- ( bt = 28 - 42 % ) TTTTrTTTTr : ng knh that trai cuoi TT TTTTh : ng knh that trai cuoi TTh ThTTTr - ThTTThPXTM = --------------------------- (bt > 55%)ThTTTrThTTTr : The tch cuoi tam trng ThTTTh : The tch cuoi tam thu
* Ty le be day cuoi tam trng cua vach that trai : VLT ----------------- ( bt : 0,9 - 1,3 ) VSTTVLT : Vach lien thatVSTT : Vach sau that trai
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu (2D)- Khao sat van ong cua cac cau truc cua tim.- 4 mat cat c ban: + canh c+ mom tim+ di b sn hay di mom c+ tren hom c
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat canh c truc doc
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat canh c truc ngang, ngang van MC
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat canh c truc ngang, ngang van 2 la
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat canh c truc ngang, ngang cot c
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat 4 buong t mom
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat 3 buong t mom
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat 4 buong di sn
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat di sn theo truc ngang
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat c ban tren hom c.
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
Sieu am hai chieu : mat cat theo truc ngang MC
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SO SANH GIA SIEU AM 2D VA DOPPLERTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 32
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
SIEU AM DOPPLERVan toc mau trong buong tim va mach mau .
Fd = 2Fo x V x Cosin q / C hay Fd x C V= 2 Fo cosin q Fo : Chum phat ra Fd : Chuyen dch Doppler q : Goc tao bi chum tia Doppler phat ra va hng dong mau C : Hang so V : Van toc dong mau
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NGUYEN LY C BAN CUA HIEN TNG DOPPLERTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 33
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KY THUAT KHAM NGHIEM BANG SIEU AM TIMSIEU AM DOPPLER1. Phan tch cac bieu hien Doppler- Bang nghe- Bang hnh anh2. Cac he thong ghi Doppler- Doppler xung (Pulsed Doppler)LPRF, HPRF - Hien tng phu trum (Aliasing)(LPRF : Low Pulsed Repetition Frequency)- Doppler lien tuc (Continuous Doppler)- Doppler mau (Color Doppler)
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S KHAC BIET GIA DOPPLER XUNG VA DOPPLER LIEN TUCTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 35
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MOT V DU VE HIEN TNG PHU TRUM (ALIASING)TL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 36
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VAN TOC DONG CHAY TANG, PHO DOPPLER RONG HNTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 38
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TNG QUAN GIA DIEN TCH LO H VI VAN TOC DONG CHAY VA TN HIEU DOPPLER MAUTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 40
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KY THUAT KHAM NGHIEM BANG SIEU AM TIMSIEU AM DOPPLER: KHAO SAT CAC DONG BNH THNG- Dong van 2 la : * Song E; song A* E/A > 1* V song E: 0,9m / giay (0,6 - 1,3 m/giay)- Dong MC :V = 1,35 m/giay (1 - 1,7 m/giay)- Dong 3 la : V = 0,5 m/giay (0,3 - 0,7 m/giay)- Dong MP :V = 0,75 m/giay (0,6 - 0,9 m/giay)
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
DOPPLER XUNG: CON TRO (CURSOR) VA MAU NH V (SAMPLE VOLUME LOCATOR)
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
DOPPLER DONG VAN 2 LA(NH TRAI --> THAT TRAI)
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
DOPPLER DONG MAU QUA VAN MC
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
DOPPLER DONG MAU QUA VAN MP
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
DOPPLER DONG H VAN 3 LA
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
AP DUNG LAM SANG CUA DOPPLER TIM- o dien tch m van 2 la:Cong thc Liv Hattle S = 220 / PHTPHT = Pressure Half Time
- o chenh ap lc ngang van: Cong thc Bernouilli gian lc : P = 4V2
- o dien tch m van bang phng trnh lien tuc: V1 x S1 = V2 x S2
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KY THUAT KHAM NGHIEM BANG SIEU AM TIM
AP DUNG LAM SANG CUA DOPPLER TIM- o cung lng tim:CLT = TPVTM x DT x TS TPVTM : Tch phan van toc mau theo thi gian VTI (Velocity time integral)DT : Dien tch van (cm 2)TS : Tan so tim
- Phat hien dong chay thong trong tim (Shunts): TD: TLN, TLT,... - o ap lc MP- Phat hien va nh lng h van
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CAC KY THUAT MISieu am tim trong long MVSieu am trong buong timSieu am tim 3 chieuDoppler mo c tim (Tissu Doppler Imaging-TDI)
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DOPPLER MO C TIMCung nguyen tac Doppler dong mauMuc tieu : mo c tim thay v hong cau
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NGUYEN TAC DOPPLER MO C TIMTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 53
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DOPPLER MO C TIM : MO C TIM XA AU DO MAU XANH, VE PHA AU DO (TAM THU) CHO MAU OTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 53
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DOPPLER MO C TIM : TMTL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 54
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DOPPLER MO C TIM : CAT DOPPLER XUNG PHAN BEN VONG VAN 2 LATL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 54
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S O BIEU TH PHNG PHAP KHAO SAT DOPPLER MO VONG 2 LA 2 IEM : TNH C STRAIN VA STRAIN RATEStrain : keo cangStrain rate : van toc keo cang
TL : Feigenbaum H, Armstrong WF, Ryan T. Feigenbaums echocardiography, 6th ed 2005. Lippincott Williams & Wilkins, p. 55