5
Echocardiography
Which of the following manipulations will increase the echocardiographic frame rate (see Box 5.1)?
- Increase depth
- Increase transmit frequency
- Decrease sector angle
- Increase transmit power
- Increase depth
The lateral resolution increases with:
- Decreasing transducer diameter
- Reducing power
- Beam focusing
- Reducing transmit frequency
- Decreasing transducer diameter
Axial resolution can be improved by which of the following manipulations?
- Reducing beam diameter
- Beam focusing
- Reducing gain
- Increasing transmit frequency
- Reducing beam diameter
Which of the following is associated with continuous-wave Doppler compared with pulsed-wave Doppler?
- Aliasing
- Range specificity
- Ability to record higher velocities
- All of the above
- Aliasing
An intraoperative transesophageal echocardiogram (TEE) revealed mitral regurgitation (MR) with the following measurements: regurgitant jet area 4 cm2, proximal isovelocity surface area (PISA) radius 0.8 cm at a Nyquist limit of 50 cm/s at a heart rate of 82 bpm and arterial blood pressure 80/40 mmHg (see Box 5.2). What does this represent?
- Mild MR
- Moderate MR
- Severe MR
- Mild MR
With one exception, for a given regurgitant volume all of the following result in a reduction in the jet size. Which is the exception?
- Fast heart rate
- Doubling the sector angle
- Increasing the imaging depth
- Increasing the blood pressure
- Fast heart rate
A patient has an LV outflow tract (LVOT) velocity of 1 m/s, time velocity integral (TVI) of 25 cm, LVOT diameter of 2 cm, aortic transvalvular velocity of 1.5 m/s, and heart rate 70 bpm. What is the cardiac output of this patient?
- 5.5 L/min
- 4.5 L/min
- 6.3 L/min
- Cannot be determined based on the data given
- 5.5 L/min
A patient with aortic stenosis (AS) has an LVOT diameter of 2 cm, LVOT velocity (V1) of 2.5 m/s, and transaortic valve velocity (V2) of 5 m/s; two-dimensional examination showed moderate systolic anterior motion (SAM) of the mitral leaflet. How would you describe the valvular AS in this patient?
- Mild
- Moderate
- Severe
- Cannot be calculated based on data given
- Mild
In a patient with isolated aortic regurgitation (AR), the following measurements were obtained: transmitral flow 80 cm3/beat, flow across aortic valve 140 cm3/beat, TVI of AR signal 100 cm. How would you describe the AR in this patient?
- Mild
- Moderate
- Severe
- Cannot be determined
- Mild
The presence of severe AR in a patient with mitral stenosis (MS) is likely to do which of the following to the calculated mitral valve area by the pressure half-time method?
- Overestimate the valve area
- Underestimate the valve area
- Have no effect
- Overestimate the valve area
What is this patient in Figure 5.11 likely to have?
- Severe AS
- Severe MR
- Severe pulmonary hypertension
- Mild AS
- Severe AS
For the patient in question above, the LVOT diameter was 2 cm and the LVOT velocity by pulse Doppler was 1 m/s. What is the aortic valve area by the continuity equation?
- 0.2 cm2
- 0.3 cm2
- 0.5 cm2
- 0.8 cm2
- 0.2 cm2
Figure 5.13 is the continuous wave signal obtained from the pulmonary valve at the mid to proximal esophageal location. What is this patient likely to have?
- Wide-open pulmonary regurgitation (PR)
- Mild PR
- Severe valvular pulmonary stenosis (PS)
- Severe subvalvular PS
- Wide-open pulmonary regurgitation (PR)
The pulmonary vein flow shown in Figure 5.14 is indicative of what?
- Elevated LA pressure with normal end diastolic pressure (EDP)
- Elevated LA pressure with elevated EDP
- Abnormal LV relaxation with normal EDP
- Elevated LV EDP with normal LA pressure
- Elevated LA pressure with normal end diastolic pressure (EDP)
The mitral flow pattern shown in Figure 5.15 is suggestive of what?
- Normal LA pressure
- High LA pressure
- Atrial mechanical failure
- Abnormal LV relaxation with normal LA pressure
- Normal LA pressure
What condition does the patient in Figure 5.16 have?
- Mitral atresia
- Tricuspid atresia
- Transposition of great vessels with atrial baffle
- Epstein’s anomaly
- Mitral atresia
Which of the following does the patient in Figure 5.17 have?
- Prominent Eustachian valve
- Ostium secundum ASD
- Ostium primum ASD
- Sinus venosus ASD
- Prominent Eustachian valve
What type of flow was recorded from the mid-esophageal position in Figure 5.18?
- Mitral flow
- Pulmonary vein flow
- Superior vena cava flow
- Flow across ASD
- Mitral flow
The patient in Question 5.17 with secundum ASD has ASD dimensions of the defect 3 cm × 2 cm, TVI of flow across the defect is 39 cm, and heart rate of 70/s. What is the approximate shunt flow across the ASD?
- 12.8 L/min
- 3 L/min
- 7 L/min
- Cannot be calculated
- 12.8 L/min
What is the cause of the patient’s mitral valve problem shown in Figure 5.20?
- Rheumatic heart disease
- Degenerative valve disease
- Fen–phen valvulopathy
- Ischemic heart disease
- Rheumatic heart disease
Figure 5.21 shows a patient that may have all of the following except what?
- Atrial septal defect
- Wolf–Parkinson–White syndrome
- TR
- Bicuspid aortic valve
- Atrial septal defect
The M-mode echocardiogram in Figure 5.22 is suggestive of what?
- Normal mitral valve motion
- MS
- Severe AR
- High LA pressure
- Normal mitral valve motion
What is the image shown in Figure 5.23 suggestive of?
- Mitral annuloplasty
- Catheter in the coronary artery
- Biventricular pacemaker or implantable cardioverter-defibrillator (ICD)
- An artifact
- Mitral annuloplasty
What is the structure denoted by the arrow in Figure 5.24?
- LA appendage
- Left lower pulmonary vein
- Left upper pulmonary vein
- Right lower pulmonary vein
- LA appendage
The patient shown in Figure 5.25 has what condition?
- Valvular AS
- Subvalvular AS
- Endocarditis
- Hypertrophic obstructive cardiomyopathy (HOCM)
- Valvular AS
The cause of dyspnea in the patient in Figure 5.26 is likely to be due to what?
- Left heart failure
- Primary pulmonary hypertension
- Chronic obstructive pulmonary disorder
- None of the above
- Left heart failure
Figure 5.27 shows an end systolic frame in a patient with shortness of breath. What is the most likely diagnosis?
- Ebstein’s anomaly
- Hypertrophic cardiomyopathy
- ASD
- Dilated cardiomyopathy
- Ebstein’s anomaly
What is the most likely mechanism of MR in the patient in Figure 5.28?
- P2 tethering
- P2 prolapse
- Bileaflet mitral valve prolapse
- None of the above
- P2 tethering
A 19-year-old patient was stabbed in the precordial area. Examination revealed a loud systolic murmur (Figure 5.29). What is the most likely cause of this murmur?
- Penetrating injury to the interventricular septum
- Mitral valve prolapse
- HOCM
- None of the above
- Penetrating injury to the interventricular septum
What is the continuous-wave Doppler signal in Figure 5.30 suggestive of?
- AS and AR
- MS and MR
- VSD flow
- Aortic flow in a patient with coarctation
- AS and AR
The continuous wave signal in Figure 5.31 was obtained from the mid-transesophageal location. What is it indicative of?
- AS and AR
- MS and MR
- VSD flow
- None of the above
- AS and AR
Figure 5.32 shows a TEE image from the mid-esophagus of a late diastolic frame of the aortic valve. What is this patient most likely to have?
- Severe AR
- Severe AS
- HOCM
- Ascending aortic dissection
- Severe AR
What is the patient in Figure 5.33 most likely to have?
- Acute severe MR
- Chronic severe MR
- Severe MS and mild MR
- None of the above
- Acute severe MR
The patient in Figure 5.34 had Staphylococcus aureus endocarditis of the aortic valve. What is the most likely cause?
- Central venous catheter-associated infection
- Dental work
- Immunosuppressed state
- Intravenous drug use
- Central venous catheter-associated infection
What is the image of the aortic valve in Figure 5.35 suggestive of?
- Aortic valve vegetation
- Node of Arantius
- Lambl’s excrescences
- Ascending aortic dissection causing prolapse of the noncoronary cusp
- Aortic valve vegetation
What is the most likely cause of the signal shown in Figure 5.36?
- HOCM
- Critical valvular AS
- Acute MR
- None of the above
- HOCM
What is the image shown in Figure 5.37 suggestive of?
- Bioprosthetic tricuspid valve
- Carcinoid valvulopathy of tricuspid valve
- Tricuspid annuloplasty ring
- Large tricuspid vegetation
- Bioprosthetic tricuspid valve
What is the 65-year-old patient with MR in Figure 5.38 likely to have?
- An opening snap
- Third heart sound
- Fourth heart sound
- Summation gallop
- An opening snap
What is the continuous-wave Doppler signal in Figure 5.39 consistent with?
- Critical AS
- Severe MR
- Maladie de Roger
- None of the above
- Critical AS
The TR signal in Figure 5.40 was obtained from TEE. The clinically estimated right atrial (RA) pressure in this patient was 20 mmHg and there is no PS. What would the PA systolic pressure in this patient be?
- 30 mmHg
- 50 mmHg
- 80 mmHg
- Cannot be calculated
- 30 mmHg
What condition is the patient in Figure 5.41 likely to have?
- Acute severe AR
- Mild AR
- MS
- None of the above
- Acute severe AR
The transmitral flow in Figure 5.42 is obtained from the esophageal transducer location from a patient with Staphylococcus aureus bacteremia and acute hemodynamic decompensation. The patient is in sinus rhythm. What is the most likely cause of his decompensation?
- Acute MR
- Acute AR
- Rupture of the ventricular septum
- None of the above
- Acute MR
The pulse-wave Doppler flow signal in the descending thoracic aorta on a TEE shown in Figure 5.43 is indicative of what?
- Coarctation of the aorta
- Middle aortic syndrome
- Severe AR
- HOCM
- Coarctation of the aorta
What is the likely cause of heart failure in the 30-year-old man shown in Figure 5.44?
- Noncompaction of the left ventricle
- Hemochromatosis
- Cardiac amyloid
- Hypertrophic cardiomyopathy
- Noncompaction of the left ventricle
What is the structure indicated by the arrow in Figure 5.45?
- IVC–RA junction
- Superior vena cava
- Anomalously draining right upper pulmonary vein
- ASD
- IVC–RA junction
What is the approximate MR flow rate of the patient in Figure 5.46 (PISA radius of 0.9 cm, aliasing velocity of 38 cm/s)?
- ∼200 cm3/s
- ∼200 cm3/min
- ∼100 cm3/min
- ∼100 cm3/s
- ∼200 cm3/s
What is the likely diagnosis of the patient in Figure 5.47?
- An early diastolic murmur
- Late-peaking systolic ejection murmur with absent A2 component of S2
- Late-peaking systolic murmur increased by Valsalva’s maneuver and normal A2
- Mid-diastolic murmur
- Late-peaking systolic ejection murmur with absent A2 component of S2
- An early diastolic murmur
What is the most likely diagnosis of the patient in Figure 5.48?
- HOCM
- Severe AS
- Mitral valve prolapse
- None of the above
- HOCM
What is the most likely diagnosis of the patient in Figure 5.49?
- Apical HOCM
- Hypertensive heart disease
- Endomyocardial fibrosis
- None of the above
- Apical HOCM
The appearance of the atrial septum in the patient in Figure 5.50 is due to what?
- ASD repair with a pericardial patch
- ASD closure device
- PFO closure device
- None of the above
- ASD repair with a pericardial patch
What does Figure 5.51 show?
- Normal native tricuspid valve
- Normal bioprosthetic valve
- Vegetation on a bioprosthetic valve
- Avulsion of the tricuspid valve
- Normal native tricuspid valve
A 31-year-old woman with no other medical history had two episodes of transient ischemic cerebral attacks, the first one after a long duration of air travel and the second one during straining in the rest-room. From the TEE image in Figure 5.52, what is the most likely cause of this patient’s attacks?
- Paradoxical embolism
- Vagally mediated atrial fibrillation
- LA thrombus
- None of the above
- Paradoxical embolism
A 35-year-old patient with AIDS and bicuspid aortic valve has Staphylococcus bacteremia. What is the parasternal long-axis color flow image in Figure 5.53 suggestive of?
- Right coronary artery flow
- Pulmonary vegetation
- Fistulous communication between aorta and right ventricle
- None of the above
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- Right coronary artery flow