Handbook
Handbook
ESSENTIALS
HANDBOOK
Updated 01/26/2023
Apical views
Mastering the apical four-chamber view 17
Mastering the apical five-chamber view 18
Mastering the apical three-chamber view 19
Mastering the apical two-chamber view 20
Subcostal views
Mastering the subcostal four-chamber view 21
Mastering the subcostal IVC view 22
Suprasternal view
Mastering the suprasternal view of the aorta 23
The valves
Assessing aortic stenosis 33
Detecting aortic regurgitation 34
Recognizing mitral stenosis 35
Diagnosing mitral regurgitation 36
Spotting tricuspid and pulmonary valve disease 37
Checking replacement valves 38
Appendix
Reference list 49
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OVERVIEW
Knowing what your machine can do
Full size
PRO CON
• Complex techniques • Heavy
• Wired to archive • Difficult to steer
• Optimal quality • Expensive
Laptop
PRO CON
• Portable • Not usually wired to archive
• Moderate cost • Reduced imaging quality
• Reasonable functionality
Handheld
PRO CON
• Highly portable • Limited functionality
• Cheap • Limited storage
• Imaging can be challenging
Probes
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OVERVIEW
Understanding the essential imaging and Doppler modalities
The behaviour of the ultrasound within the body is described by the formula:
Pulsed wave and color Doppler are similar: they but cannot localize within the ultrasound beam. So
are good for localization but unable to accurately make sure to use the Doppler modality best suited
display high velocities. In contrast, continuous w and swap between them as required.
wave Doppler is good for measuring high velocities
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Before you begin your scan, remember to ask yourself the following questions:
• Have you got the right equipment? • Have you explained what you are going to
do in a way your patient understands and
• Have you got the right patient? gained verbal consent?
• Have you entered the patient’s details • Have you made allowances for any
accurately on the machine? cultural/religious/language/disability/
individual patient preferences?
• Have you attached the ECG?
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Here are some tips you can use to obtain an optimal image:
• For a large patient, use a lower scanning • Move the focus to line up with any structure you
frequency (and for a small patient, use a higher are especially interested in. You can use a high-
scanning frequency). resolution zoom to help improve the image, too.
• Adjust the sector width and depth so that you • Freeze, then trackball, can help if you want to
display only the structures you are interested in slowly scroll through your images to give yourself
for each clip you record. Always expect to adjust more time to work out what’s happening.
these when you alter the window (e.g., changing
from parasternal to apical views, or from apical • Adjust Doppler velocity scales and sweep speed
to suprasternal). to display two or three waveforms with the
waveform taking up at least two-thirds of the
• Try not to over gain your images, especially if you available y-axis display.
are scanning in a well-lit environment. You can use
TGC to enhance the display of deeper structures. • Archive good quality clips using the ECG to
If you are using a machine that doesn‘t do this trigger them, and cycle select to make sure you
automatically just ramp down the top two or save the best example.
three sliders to reduce the echoes from nearest
the probe. w
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To help you make your measurements, here are some things to keep in mind:
• Use the same conventions as the rest of the aorta was measured leading edge to leading
your department. edge in systole but there is a trend towards
measuring inner to inner and some centers now
• Make sure the normal ranges you use are measure in diastole.
appropriate for your patients, and that you are
using the same measuring conventions used • Don’t over measure Doppler velocities. Trace
when the normal range was devised. around the main body of the waveform, ignoring
artifacts, especially at the tips.
• In general, a leading edge convention is used for
measuring in the parasternal views. However, • Don’t try to perform a Simpson’s ejection
the left ventricular outflow tract (LVOT) is usually fraction if you can’t see the endocardium.
measured inner edge to inner edge. Historically
Inner edge to inner edge convention: Leading edge to leading edge convention:
bottom of interface to top of next interface. top of an echo interface to the top of the interface below.
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An artifact can make it look like there is something present that isn’t there, or it may hide structures from
being seen. If you suspect an artifact, try one of the following:
Artifacts are particularly likely when there is material are interpreted incorrectly because the normal
within the scanning zone which is unlike normal assumptions about the behavior of ultrasound in the
cardiac tissues, such as a pacing lead, replacement body do not apply.
valve, air, or calcium. Typically, returning echoes
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This is an important component of performing an echo and will be informed by your institution’s policies
and practice guidelines. As a general rule, anything that touches the patient should be cleaned carefully
after every scan. Some cleaning agents can damage ultrasound probes, so make sure you use a method the
manufacturer supports and it’s good practice to routinely check the probe for damage before you use it.
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PARASTERNAL LONG-AXIS
(PLAX) VIEWS
Obtaining an optimal image
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder RV
w
Right ventricle (RV)
PARASTERNAL LONG-AXIS
(PLAX) VIEWS
Mastering the PLAX inflow view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
RV
Probe position: 4th intercostal space, left sternal edge
w
Right ventricle (RV)
PARASTERNAL LONG-AXIS
(PLAX) VIEWS
Mastering the PLAX outflow view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder RV
PARASTERNAL SHORT-AXIS
(PSAX) VIEWS
Mastering the PSAX aortic valve view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
RVOT
Probe position: 4 intercostal space, left sternal edge
th
RA AV
Probe orientation: notch towards patient’s left shoulder
LA
Tilt probe upwards towards head to show aorta as a circle.
w
Right ventricular outflow tract (RVOT)
PARASTERNAL SHORT-AXIS
(PSAX) VIEWS
Mastering the PSAX mitral valve view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
PARASTERNAL SHORT-AXIS
(PSAX) VIEWS
Mastering the PSAX papillary muscle view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
RV
Probe position: 4th intercostal space, left sternal edge
LV
Probe orientation: notch towards patient’s left shoulder
Tilt the probe even further towards the spine keeping the
left ventricle as a circle but showing the papillary muscles
instead of the mitral valve.
w
Right ventricle (RV)
APICAL VIEWS
Mastering the apical four-chamber view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
w
Left ventricle (LV)
APICAL VIEWS
Mastering the apical five-chamber view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
LVOT
Probe position: over the apex beat, or V5 of ECG LV
RV
Probe orientation: notch towards patient’s left shoulder, tilt
upwards from the four-chamber view
RA LA
AV
w
Left ventricle (LV)
APICAL VIEWS
Mastering the apical three-chamber view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
Aorta (Ao)
APICAL VIEWS
Mastering the apical two-chamber view
Patient position: lying on left side, left arm raised, raise the
back of the bed or use pillows under the left shoulder
LV
Probe position: over the apex beat, or V5 of ECG
MV
Probe orientation: rotated about 60 degrees counterclockwise
from the four-chamber view LA
SUBCOSTAL VIEWS
Mastering the subcostal four-chamber view
SUBCOSTAL VIEWS
Mastering the subcostal IVC view
IVC
Probe orientation: rotated slightly counterclockwise RV
from the subcostal four-chamber view RA
LA
SUPRASTERNAL VIEW
Mastering the suprasternal view of the aorta
Desc.
Ao
Innominate
w
Left common carotid
Left subclavian
Right pulmonary artery (RPA)
National echo societies and echo guideline documents recommend slightly different normal ranges
and severity criteria for left ventricular (LV) size. Ideally you should use the same values as the other
echocardiographers in your institution to ensure uniformity of practice. If you do not have this guidance
available, these tables may help:
Women
LV diastolic diameter (cm) 3.9–5.3 5.4–5.7 5.8–6.1 ≥6.2
Men
LV diastolic diameter (cm) 4.2–5.9 w6.0–6.3 6.4–6.8 ≥6.9
Measure using a leading edge convention at the tip of the mitral valve leaflets in the parasternal long-axis view.
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Women
LV diastolic volume (mL) 56–104 105–117 118–130 ≥131
Men
LV diastolic volume (mL) 67–155 156–178 179–200 ≥201
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Women
LV wall thickness (mm) 6–9 10 11–12 13–15 ≥16
Men
LV wall thickness (mm) 6–10 11 12–13 14–16 ≥17
w
1 IVS = interventricular septum
2 PW = posterior wall
Not all echo labs use ejection fraction (EF), and the severity criteria vary in different guideline documents. It’s
best to use the same values as your colleagues and audit that you are all reporting EF similarly.
Assess left ventricle diastolic function using tissue Doppler and pulsed wave Doppler at the mitral valve.
Deceleration time
If you measure E, A, E deceleration, and lateral E/E’ you can use this composite table as a rough guide to see
if it helps identify the filling pattern:
Use these diagrams to guide you when you assess regional wall abnormalities. The walls can be described
as ‘normal’, ‘hypokinetic’, ‘akinetic’, ‘dyskinetic’, ‘aneurysmal’, or ‘hyperkinetic’. The 16- and 17-segment
models have different terms for some of the walls so make sure you use the same model as your colleagues.
16-segment model
Mid Basal
Anteroseptal Anteroseptal
Septal Anterior
Inferior Lateral
Posterior w Posterior
Anteroseptal
Apical
Posterior
Anterior
Inferior
Lateral
Septal
Mid
Basal
Circumflex distribution
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17-segment model
Mid Basal
Anteroseptal Anteroseptal
Inferoseptal Anterior
Inferior Anterolateral
Inferolateral Inferolateral
Anteroseptal
Inferolateral
Inferoseptal
Apical
Anterior
Inferior
Mid
Basal
Circumflex distribution
The 16- and 17-segment models are reproduced from Segar DS et al. 1992. J Am Coll Cardiol. 19:1197–1202.
Upper limit of normal diameters for the right ventricular (RV) cavity
TAPSE <16 mm and tissue Doppler S wave <10 cm/s suggest abnormal right ventricular longitudinal
systolic function.
3
2
1
1 Basal (RV1)
2 Mid (RV2)
3 Length (RV3)
• Measure the peak velocity of the tricuspid • Add them together, as long as there is no
regurgitation and note the peak pressure pulmonary stenosis or right ventricular
difference. outflow obstruction.
Collapse with sniff > 50% < 50% > 50% < 50%
THE VALVES
Assessing aortic stenosis
1 LVOT VTI
2d
3 AV VTI
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THE VALVES
Detecting aortic regurgitation
PHT is the pressure half time of the continuous wave Doppler signal lined up with the regurgitant jet; LVOT = left
ventricular outflow tract.
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THE VALVES
Recognizing mitral stenosis
PHT is the pressure half time of the continuous wave Doppler signal lined up with forward flow through the mitral valve.
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THE VALVES
Diagnosing mitral regurgitation
Continuous wave (CW) signal Incomplete, faint Moderate, complete Dense, holosystolic
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THE VALVES
Spotting tricuspid and pulmonary valve disease
Tricuspid regurgitation
Assessing severity of tricuspid regurgitation:
Continuous wave (CW) signal Incomplete, faint Low or moderate Dense may be
intensity triangular
Tricuspid stenosis w
Suspect tricuspid stenosis if there is a narrow forward color jet and mean forward gradient >2 mmHg.
Pulmonary regurgitation
The pulmonary regurgitation is severe if regurgitant jet PHT is <100 ms and the color jet fills more than 50%
of the right ventricular outflow tract (RVOT).
Pulmonary stenosis
Rough guide to grading pulmonary stenosis:
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THE VALVES
Checking replacement valves
Valve function will depend on the position, size, type, and implantation technique.
• As a general rule, assess a replacement valve • Mechanical valves are especially difficult to
using the same methods as you would the scan because they cause artifactual echoes, so
equivalent native valve disease, but also check a TEE may be helpful, especially for mechanical
for paraprosthetic regurgitation, which will be mitral valves.
outside the valve.
• Biological replacements usually deteriorate
• Almost all replacement valves are more slowly, but occasionally a cusp tear can cause
obstructive than a native valve. sudden severe regurgitation.
• Mild regurgitation through a replacement valve • A change from baseline measurements is the
is usually normal. most useful guide.
w
If you don’t have a baseline study to demonstrate deterioration in function:
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Check:
• Site, attachment, size, shape, echo density, mobility, and any invasion of the myocardium.
• Then integrate the echo findings with the patient’s clinical status.
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• A Chiari net is a normal finding in the right atrium. • The right ventricle is normally trabeculated with
a moderator band towards the apex.
• A eustachian valve may be seen at the mouth
of the IVC. It can be thin or thick and fixed • Generalized thickening of cardiac structures can
or mobile. occur with age.
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The aorta
4 1
1 2 3
2
1 Annulus 1 Arch
2 Sinus of valsalva 2 Descending aorta
3 Sinotubular junction w
4 Ascending aorta
Aortic diameters are related to body habitus, gender, As a really rough guide, if you measure a diameter
and age, so use the normal ranges recommended by of around 4 cm in the root, ascending aorta, or arch,
your department, making the corrections they advise there is likely to be some degree of dilation so make a
(e.g., body surface area or height). There are phone thorough assessment of the aorta at all levels and refer
apps and websites that can calculate the expected to normal ranges. If it’s >5.5 cm, intervention may be
normal range for your patient based on their height, indicated, but if the patient has Marfan syndrome or
weight, and age. a similar connective tissue disorder be more cautious
because a diameter of 5.0 cm or even 4.5 cm may
trigger an intervention to pre-empt a dissection.
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Type A Type B
Proximal Distal
On echo assess the dissection flap, the site of the check for pericardial fluid. For type A/proximal
entry tear, any hematoma, and involvement of dissections make sure that the aortic valve is
other vessels. Measure the aortic diameters and functioning normally.
IVC w
The IVC is normally <2 cm in diameter and collapses cannot be made. The abdominal aorta is sometimes
fully with a sniff. Its size and reactivity can be used mistaken for the IVC but its motion is very different—it
to evaluate filling status and right heart pressures. pulses with each cardiac cycle, unlike the IVC which
However, if a patient is ventilated these assumptions reduces in diameter with inspiration.
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ASD
Congenital ventricular septal defect (VSD)
RA LA
Check:
• Position
• Direction and size of shunt
• Left ventricular size and function Shunts
• Pulmonary artery systolic pressure
• Other congenital abnormalities
w
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Well-archived study:
• Good quality images and waveforms
• Representative
• Effectivels labelled
• Edited
• Safely stored
• Easily retrieved
w
Server Cloud CD/DVD Video tapes
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Measurements
• 2D, M-mode, Doppler
• Include indices used to assess severity.
Observations
• Based on the systematic study performed, describe each structure imaged.
• Mention structures not seen.
• Include severity assessments. w
• Include minor abnormalities and normal variants.
Summary or conclusion
• Integrate and summarise the measurements and observations. Answer the clinical question.
• Must be understood by non-echocardiographer.
• Flag abnormalities, exclude minor or normal findings, compare with previous studies if relevant.
Imaging
Aortic
Imagingroot 3.4 cm Ventricular septum 1.0 cm
Left atrium 5.5 cm
Aortic root 3.4 cm Left ventricular
Ventricular posterior
septum 1.0 cm wall 0.7 cm
Left ventricular diastolic diameter 5.7 cm
Left atrium 5.5 cm RV1 3.7 cm
Left ventricular posterior wall 0.7 cm
Left ventricular
Left ventricular diastolic
systolic diameter
diameter4.6
5.7cm
cm RV TAPSE
RV1 3.7 cm17 mm
Left ventricular systolic diameter 4.6 cm RV TAPSE 17 mm
Doppler
LVOT vti 12 cm
Doppler AV Vmax 1.0 m/s PV Vmax 0.9 m/s
MV E 0.6
LVOT m/s
vti 12 cm MVVmax
AV A 0.9 m/s
1.0 m/s w MVVmax
PV Edec 170 ms
0.9 m/s
MV EE/A
0.60.7
m/s MV A 0.9 m/s MV Edec 170 ms
LV Lateral
MV E/A 0.7S 7 cm/s LV Lateral E/E’ 5
LV Lateral S 7 cm/s LV Lateral E/E’ 5
Mildly dilated left ventricle with regional wall abnormalities and moderate systolic impairment. Visually
estimated
Mildly ejection
dilated fractionwith
left ventricle 30–35%.
regional wall abnormalities and moderate systolic impairment. Visually
Moderately dilated atria.
estimated ejection fraction 30–35%.
Small pericardial
Moderately dilatedeffusion.
atria.
Small pericardial effusion.
47
APPENDIX
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Updated 01/26/2023
Reference list
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Dalen, H, Thorstensen, A, Vatten, LJ et al. 2010. Reference values and distribution of conventional
echocardiographic Doppler measures and longitudinal tissue Doppler velocities in a population free from
cardiovascular disease. Circ Cardiovasc Imaging. 3: 614–622. PMID: 20581050
Echocardiographic Normal Ranges Meta-Analysis of the Left Heart Collaboration. 2015. Ethnic-specific
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European Society of Cardiology. 2017. The EACVI Textbook of Echocardiography, edited by P, Lancellotti, JL,
Zamorano, G, Habib, and L, Badano. 2nd edition. Oxford: Oxford University Press.
Lang, RM, Badano, LP, Mor-Avi, V, et al. 2015. Recommendations for cardiac chamber quantification by
echocardiography in adults: An update from the American Society of Echocardiography and the European
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Lang, RM, Bierig, M, Devereux, RB, et al. 2006. Recommendations for chamber quantification. Eur J
Echocardiogr. 7: 79–108. PMID: 16458610
Nishimura, RA, Otto, CM, Bonow, RO, et al. 2014. AHA/ACC guideline for the management of patients with
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Rimington, H and Chambers, JB. 2016. Echocardiography: A practical guide for reporting and interpretation.
Boca Raton, FL: CRC Press, Taylor & Francis Group.
Rudski, LG, Lai, WW, Afilalo, J, et al. 2010. Guidelines for the echocardiographic assessment of the right heart
in adults: A report from the American Society of Echocardiography endorsed by the European Association of
Echocardiography, a registered branch of the European Society of Cardiology, and the Canadian Society of
Echocardiography. J Am Soc Echocardiogr. 23: 685–713. PMID: 20620859
Segar, DS, Brown, SE, Sawada, SG, et al. 1992. Dobutamine stress echocardiography: Correlation with coronary
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Joint Task Force on the Management of Valvular Heart Disease of the European Society of Cardiology (ESC);
European Society of Cardiology (ESC); European Association for Cardio-Thoracic Surgery (EACTS), Vahanian, A,
Alfieri, O, et al. 2012. Guidelines on the management of valvular heart disease (version 2012). Eur Heart J. 33:
2451–2496. PMID: 22922415
Wharton, G, Steeds, R, Allen, J, et al. 2015. A minimum dataset for a standard adult transthoracic
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PMID: 26693316
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