Echocardiography Function Guiline Image 추가
Echocardiography Function Guiline Image 추가
Echocardiography Function Guiline Image 추가
Clinical SpecialistT
ALPINION Medical eam SpecialistTeam
Systems , Clinical
Echocardiography
• Structure; Chamber size, valves, neoplasm, pericardium great vessels, IVC, SVC
Hemodynamics
Single Crystal Phased Array Single Crystal Phased Array Phased Array
Application : Adult Echo, TCD, Application : Adult Echo, TCD, Application : Adult Echo, TCD,
Pediatric Echo Pediatric Echo Pediatric Echo,
CW2.0 CW5.0
a group of specialized
cardiac muscle cells
send signals to the
heart muscle,
cause to contract ;
SA node
-> AV node
-> Bundle of His
-> bundle branches
-> Purkinje fibers
Frequency Determine maximum velocity range, low frequency is available to the pixel size becomes
process higher velocity fine and small
PRF Determine color scale ( velocity) Send more PRF,
Wall filter Filter our clutter signals caused from vessel movement For high dynamic organ
needs, such as heart
Persist Provides smoothing effect by frame averaging, not affect frame Remaining image
rate
Threshold threshold assigns the color information to stop at which gray scale Display color on bright B-
mode
Type Velocity, velocity variance ( directional power doppler), Power VV & PD for low velocity
doppler (intensity ). detection or renal flow
Ensemble packet size , 8-10 for cardiac, 14 for vein, 12 for renal Reduce frame rate
Smooth The higher, the finer margine
Angle steer Align to the flow direction -20⁰/ 0⁰/ 20⁰, -9/0/+9 Perpendicular flow to
transducer’s insonation
Line density Same as 2D –mode. . The more the detail
resolution
Suprasternal
Notch
Rt.
Parasternal Lt. Paraste
rnal
Apical
Subcostal
/Xiphoid
1. PLAX view
2. PSAX view
3. Apical view
4. Subxiphoid view
I
LA
A
S
LAA
RV
LV
• Measure RV dimensions at
• modified 4chamber
• Measure RIMP with doppler , TAPSE with M-mode
ALPINION Medical Systems, Clinical Specialist Team
The Right Ventricle : Dimensions
RVD2
RVD1
Typical distribution
• LAD, The left anterior
descending coronary
artery
• The circumflex
• The right coronary artery
13 1 7
14 6 12 13
16 8 16
2
15 5 11 14
3 9 15
10
4
RV Systolic Function
IVSs
LVEDd LVEDs
PWTs
• EF by M-mode
- Teichholz or Quinones method
- Not recommended by 2015 ASE
contraction Relaxation
ejection filling
AO AC
AV
MC
MV MO
IVS
PW
LA filling LA emptying
Male Female
Female Male
LV mass(g) 66-150 96-200
LV 44-88 50-102
mass/BSA(g/m²)
S`
1m/sec
3m/sec
Male
Feale
Strain (%) = (L t - L0 )/ L0
• GLS measurements should be made in the 3 standard apical long axis, 4 chamber,
and 2 chamber views and averaged
• A peak GLS in the range of -20%
• The lower the absolute value of strain, the more likely abnormal
AV Close
AV Open
Ao Pressure
MV Close
MV Open
LA Pressure
LV Pressure
Diastole
IVR
IVC
T
T
Rapid Slow Atrial
Filling Filling Filling
Diastole Systole
ALPINION MedicalSystems,
Medical Systems ,Clinical
ClinicalSpecialist
SpecialistT
Team
eam
Echocardiograph for Diastolic function
• Determinants of LV filling
- active myocardial relaxation
- LV compliance
- LA function
- heart rate
- pericardium
MV Eflow MV A Flow
LVend- di
LVmin. Pre A. p astolic P.
pressure ressure
MV A Flow
MV Eflow
• LA Volume
• Isovolumic Relaxation Time
• Mitral inflow
- initial low pressure filling : E wave
- active atrial contraction : A wave
• Pulmonary vein flow
• Tissue Doppler : E`
LVP>AoP
LAP>LVP
Ao.valve
Left Atrium
LA volume/BSA (ml/m²)
Evel.
Dec A vel.
Time
E vel.
IVRT
S`
a`
e`
• Pulmonary vein flow ; systolic Vel., diastolic Vel., A vel. & duration
• Measure item under “ PVe”
• Sample volume ; 2-3mm, below into pulmonary vein 0.5cm
S D
S2
Mitral Inflow
mmHg
LV
LA
cm/sec
Mitral annulus
TV closing to
opening duration
RV ET
The Right Atrium
• Measure the Right Atrial volume
- Linear dimension ; minor axis is measuredbetween the lateral RA wall
and interatrial septum at the mid atrial level
- Area ; by tracing the RA blood-tissue interface
- Volume; single plane area-length method
• Normal ranges
Women Men
RA
• Doppler has become the first line approach to the evaluation and management
of valvular heart disease
Velocity
V2
V1
TVI2
TVI1
Time
Q1 = Q2
CSA1 x TVI1 = CSA2 x TVI2
LVOT
VTI
Apical 3/5chamber
AVflow= LVOTflow
LV CSAAV x TVIAV = CSALVOT x TVILVOT
LVOT
CSALVOT
LA Volume
CSAAV
Ao
volume
LV RV
LA
RA
TR Vmax
Jet density and contour- Soft and parabolic Dense, variable contour Dense, triangular with
CW early peaking
Hepatic vein flow↑ Systolic dominance Systolic blunting Systolic reversal
Hepatic vein
Liver Liver
Liver
Liver
IVC
IVC RA
RA
Inspiration Expiration
IVC
S D
Peak
+
End Dia
+
Hemodynamics AVA
mild Mean <20 >1.5cm²
Continuity Equation
• measure “2D” at LVOT Diameter in PLAX
• measure “VTI at LVOT(PW”) in apical 5 chamber
• measure “VTI at Aortic Valve (CW)” in apical 5 chamber
LV
LA LVOT C S A LVOT
Volume
CSAAV
AV
Volume
CW through the AV
LV
AV
LA
+
+
Continuity Equation
Mitral Regurgitation Volume by Proximal Isovolumetric Surface Area
Supportive signs • Systolic dominant flow in Intermediate signs/ findings • Dense, triangular CW
pulmonary veins Doppler MR jet
• A-wave dominant mitral • W-wave dominant mitral
inflow inflow ( E>1.2m/s )
• Soft density, parabolic CW enlarged LV and LA size
Doppler MR signal ( particulary when normal
• Normal LV size LV function is present ).