Doppler echocardiography

Doppler echocardiography
Doppler echocardiography
Intervention

Mitral valve
MeSH D015150
OPS-301 code: 3-052

Doppler echocardiography is a procedure which uses ultrasound technology to examine the heart.[1] An echocardiogram uses high frequency sound waves to create an image of the heart while the use of Doppler technology allows determination the speed and direction of blood flow by utilizing the Doppler effect.

An echocardiogram can, within certain limits, produce accurate assessment of the direction of blood flow and the velocity of blood and cardiac tissue at any arbitrary point using the Doppler effect. One of the limitations is that the ultrasound beam should be as parallel to the blood flow as possible. Velocity measurements allow assessment of cardiac valve areas and function, any abnormal communications between the left and right side of the heart, any leaking of blood through the valves (valvular regurgitation), calculation of the cardiac output and calculation of E/A ratio[2] (a measure of diastolic dysfunction). Contrast-enhanced ultrasound using gas-filled microbubble contrast media can be used to improve velocity or other flow-related medical measurements.

Although "Doppler" has become synonymous with "velocity measurement" in medical imaging, in many cases it is not the frequency shift (Doppler shift) of the received signal that is measured, but the phase shift (when the received signal arrives).

This procedure is frequently used to examine children's hearts for heart disease because there is no age or size requirement.


See also

References

  1. ^ MeSH Doppler+Echocardiography
  2. ^ [1] Abdul Latif Mohamed, Jun Yong, Jamil Masiyati, Lee Lim, Sze Chec Tee. The Prevalence Of Diastolic Dysfunction In Patients With Hypertension Referred For Echocardiographic Assessment of Left Ventricular Function. Malaysian Journal of Medical Sciences, Vol. 11, No. 1, January 2004, pp. 66-74

External links

MRI

MRI of brain and brain stem · MR neurography · Cardiac MRI/Cardiac MRI perfusion · MR angiography · MR cholangiopancreatography · Breast MRI

Functional MRI  · Diffusion MRI
Ultrasound

Echocardiography / Doppler echocardiography (TTE · TEE) · Intravascular · Gynecologic · Obstetric · Echoencephalography · Transcranial doppler · Abdominal ultrasonography · Transrectal · Breast ultrasound · Transscrotal ultrasound · Carotid ultrasonography

Contrast-enhanced · 3D ultrasound · Endoscopic ultrasound · Emergency ultrasound (FAST) · Duplex
Radionuclide
2D / scintigraphy

Cholescintigraphy · Scintimammography · Ventilation/perfusion scan · Radionuclide ventriculography · Radionuclide angiography · Radioisotope renography · Sestamibi parathyroid scintigraphy · Radioactive iodine uptake test · Bone scintigraphy · Immunoscintigraphy

full body: Octreotide scan · Gallium 67 scan · Indium 111 WBC scan
3D / ECT

SPECT (gamma ray): SPECT of brain, Myocardial perfusion imaging

PET (positron): Brain PET, Cardiac PET, PET mammography, PET-CT
Optical laser Thermography
Breast thermography
v · d · eHealthcare science – Medicine · Surgery · Cardiac procedures (ICD-9-CM V3 35-37+89.4+99.6, ICD-10-PCS 02)
Surgery and IC
Heart valves
and septa

Valve repair · Valvulotomy · Mitral valve repair · Valvuloplasty (aortic, mitral) Valve replacement - Aortic valve replacement (Ross procedure, Percutaneous aortic valve replacement) · Mitral valve replacement

production of septal defect in heart: enlargement of existing septal defect (Atrial septostomy, Balloon septostomy) · creation of septal defect in heart (Blalock-Hanlon procedure)

shunt from heart chamber to blood vessel: atrium to pulmonary artery (Fontan procedure) · left ventricle to aorta (Rastelli procedure) · right ventricle to pulmonary artery (Sano shunt)

compound procedures: for transposition of great vessels (Jatene procedure, Mustard procedure) · for univentricular defect (Norwood procedure, Kawashima procedure)

shunt from blood vessel to blood vessel: systemic circulation to pulmonary artery shunt (Blalock-Taussig shunt) · SVC to the right PA (Glenn procedure)
Cardiac vessels
Other
Diagnostic
tests and
procedures

Electrophysiology: Electrocardiography (Vectorcardiography) · Holter monitor · Cardiac stress test (Bruce protocol) · Electrophysiology study

Cardiac imaging: Angiocardiography · Echocardiography (TTE, TEE) · Myocardial perfusion imaging · Cardiovascular MRI · Ventriculography (Radionuclide ventriculography) · Cardiac catheterization/Coronary catheterization · Cardiac CT · Cardiac PET

sound: Phonocardiogram
Function tests
Pacing

M: HRT

anat/phys/devp

noco/cong/tumr, sysi/epon, injr

proc, drug (C1A/1B/1C/1D), blte

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