Lecture 18: Thoracic Ultrasound

Question 1

Ultrasound does not penetrate __, can’t see into __, just the surface

Answer 1

air, lung

Question 2

thoracic ultrasound very useful for pleural ___

Answer 2

fluid

Question 3

thoracic ultrasound useful for determine __ vs___

Answer 3

body wall vs lung

Question 4

t or f: you can dx diaphragmatic hernia with ultrasound

Answer 4

true

Question 5

ultrasound notice fluid near the heart, but the heart is not wobbly and there is no compression of ventricles or atria. What is likely dx

Answer 5

pleural effusion

Question 6

ultrasound of heart, notice fluid near the heart and heart is wobbling. Compression of ventricles and atria What is likely dx

Answer 6

Pericardial effusion

Question 7

what is a major sequela to pericardial effusion

Answer 7

tamponade

Question 8

what is difference between pleural and pericardial effusion on ultrasound

Answer 8

heart motion and compression of atria and ventricles with pericardial effusion

Question 9

take an ultrasound of thorax and notice spleen is up by the heart, what wrong

Answer 9

diaphragmatic hernia

Question 10

Take ultrasound near heart and notice liver is beating with the heart, what is dx

Answer 10

pericardial diaphragmatic hernia

Question 11

thoracic metastasis is not seen if less than __mm

Answer 11

5

Question 12

what wrong

Answer 12

thoracic metastasis

Question 13

ultrasound of thorax what wrong

Answer 13

nodules- thoracic metastasis

Question 14

how should you position animal for ultrasound of heart

Answer 14

elevate animal, image through collapsed/down side lung

Question 15

how is probe positioned for short axis view

Answer 15

points towards elbows

Question 16

how is probe positioned for long axis view

Answer 16

points towards shoulders

Question 17

what view is this and identify 1-10

Answer 17

View: right parasternal long axis, 4 chamber view
1. RV
2. TV
3. RA
4. Ventricular septum
5. Chordae tendinae
6. MV
7. LV
8. LA
9. LWV
10. Papillary muscles

Question 18

what view is this and identify 1-9

Answer 18

View: right parasternal long axis 5 chamber view
1. RV
2. TV
3. RA
4. Aorta
5. Aortic valve
6. LV
7. MV
8. LA

Question 19

what view is this and identify 1-3

Answer 19

Right parasternal long axis (LV inflow/outflow) view
1. RV
2. LV
3. LA

Question 20

what view is this and what is it basis for. Identify 1-2

Answer 20

Right parasternal short axis view of ventricles
Basis for M mode
1. RV
2. LV

Question 21

what view is this, identify 1-3

Answer 21

right parasternal short axis view, mid LV (mitral valve) view
1. RV
2. LV
3. MV

Question 22

what view is this and identify 1-5

Answer 22

Right parasternal short axis (heart base or basilar view)
1. RA
2. RV
3. Aorta
4. LA
5. Pulmonary valve

Question 23

what view is this and identify 1-4

Answer 23

Left apical position 4 chamber view
1. RV
2. LV
3. RA
4. LV

Question 24

what measurement is being used here /mode

Answer 24

M mode

Question 25

what view is M mode done on

Answer 25

short axis LV view

Question 26

what are the 4 measurements for M mode

Answer 26

1. IVSd- interventricular septum diastole 2. IVSs- interventricular septum systole 3. LVFd- left ventricular free wall diastole 4. LVFs- left ventricular free wall systole

Question 27

do not measure in M mode after __

Answer 27

arrythmias

Question 28

do not include __ in M mode image/measurement

Answer 28

papillary muscles

Question 29

what does this show and what mode

Answer 29

Arrow: mitral valve E separation- almost touching interventricular septum Shows E point- septal separation

Question 30

what does this show and what is it associated with

Answer 30

Right parasternal short axis, LV mitral valve SAM arrows pointing at open mitral valve- should be closed Associated with dynamic left ventricular outflow tract obstruction and hypertrophic open cardiomyopathy