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47 Cards in this Set
- Front
- Back
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Ultrasound: The term for Brightness on Echo
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Echogenic
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Ultrasound: Hypoechoic
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Less Bright
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Ultrasound: Hyperechoic
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Appears Bright
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Ultrasound: Anechoic
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Appears Black/”through transmission”
Fluid such as Bile, CSF, Urine |
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Converts electric energy into sound energy
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Transducer
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Ultrasound: Studies the dynamic changes of Cardiac Structures
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M-Mode Ultrasound
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what is the Initial procedure of choice for suspected Cholecystitis (inflammation of gallbladder)?
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Ultrasound can identify gallbladder, gallbladder stones, and shadows that are cast from stones (fluid is black on image)
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Normal soft tissue appears as "__" echogenicity in an untrasound
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Normal soft tissue appears as medium echogenicity
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What are the Modes of Ultrasonography?
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- A-Mode (1-D): Calculate Depth
- B-Mode (2-D): Brightness, gives real-time image - M-Mode (Motion Mode): used for Cardiology and OB/GYN Imaging -Doppler: uses doppler effects |
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Why is Ultrasound is Not useful (appears all white) for lung or skeletal imaging?
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Ultrasound is unable to cross tissue-gas or tissue-bone boundaries. ultrasound reflects off very dense structures like air & calcium/bone
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Doppler Effect
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Doppler Effect is a change in the frequency of the wave due to motion of the source
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What ultrasound modes enables screening for arterial stenosisos and allows for flow velocities to be measured (Red = Artery; Blue = Venous)
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Doppler ultrasound
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Initial study of choice for Deep Vein Thrombosis (DVT)
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Compression Ultrasonography
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What is the most common benign lesion (incidental finding) of the Liver?
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Capillary Hemangioma
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Veins involved in proximal Deep Veins/DVT?
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1) Common Femoral Vein
2) Superficial Femoral Vein 3) Popliteal Vein 4) Iliac Vein |
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Calf Deep Veins/DVT?
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1) Anterior Tibial Vein
2) Peroneal Vein |
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Superficial Deep Veins/DVT
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1) Lesser Saphenous Vein
2) Greater Saphenous Vein |
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Ultrasound is the radiological procedure of choice in Pregnant Patients and Children with Acute Appendicitis
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Ultrasound is the radiological procedure of choice in Pregnant Patients and Children with Acute Appendicitis
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Ultrasound with Doppler is the Radiological Test of choice for Testicular Torsion
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Ultrasound with Doppler is the Radiological Test of choice for Testicular Torsion
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Ultrasound is the imaging study of choice for diagnosis of Ectopic Pregnancy
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Ultrasound is the imaging study of choice for diagnosis of Ectopic Pregnancy
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Ortola’s Sign
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When hip is displaced(reduced) in a frog-leg position
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4-week old infant with Ortolani’s Sign
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Developmental Dysplasia of the Hip (DDH)
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Gold Standard for Detecting Pulmonary Embolism
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Pulmonary Angiogram
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Radiopaque water-soluble agents are injected intravenously or intra-arterially and rapid sequence exposure is made to follow the source of the dye
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Angiography
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What is important to determine before conducting Angiography?
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- Nephrotoxic (an allergic reaction)***o - Iodinated intravenous contrast (tri-iodbenzoic acid)***
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Angioplasty
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Technique that uses special dilating catheters to open occluded or stenotic blood vessels (make patent).
- Balloon Angioplasty inserted in groin through femoral artery. blow up balloon to compress plaque - Coronary Stent (mesh-like tubing) remains in artery |
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Gold Standard for Detecting Aortic Dissection
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Aortic Angiography
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Gold Standard for Diagnosing DVT’s and SVC Obstruction
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Venogram
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Gold Standard for Detecting Vascular Abnormalities of the Brain
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Cerebral Angiography
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Gold Standard for evaluating Brain Aneurysms (Posterior Communicating Artery Aneurysm)
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Cerebral Angiography
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What is the first line test for DVT?
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Compression Ultrasound
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What is the Gold Standard Radiological Test for DVT?
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Contrast Venogram
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What is the Gold Standard Test for PE (Pulmonary Embolism)?
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Pulmonary Angiogram Ultrasound
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What is the Gold Standard Test for Suspected CN3 Palsy?
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Cerebral Angiogram
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What is the Gold Standard Test for SVC Compression?
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Contrast Venogram
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Name the Coronary Arteries:
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Right Coronary Artery
Left Coronary Artery Circumflex Artery Left Anterior Descending Artery |
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What is the test of choice for a suspected testicular torsion?
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Testicular Ultrasound
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Which asymptomatic patient should be screened for AAA (Abdominal Aortic Aneurysm)?
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65 – 75 year old male who was a previous smoker
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What would be the best initial breast imaging modality in a 23 year-old female?
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Breast Ultrasound
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Which imaging modality would you use to find out if a breast lesion is cystic or solid
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Breast Ultrasound
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How you screen for a AAA?
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Abdominal ultrasound to look for size of the aorta
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Imaging modality of choice in a Pregnant Patient with suspected appendicitis?
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Ultrasound (always performed during pregnancy
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What would be the appearance of bile on an ultrasound?
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Black (Anechoic) (any type of fluid including urine, CFS, amniotic fluid)
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What are the Proximal Deep Veins?
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Common Femoral Vein
Superficial Femoral Vein Popliteal Vein Iliac Vein |
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A capillary Hemangioma is usually
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Hyperechoic (Bright)
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What does this USG (ultrasound gestation) picture depict?
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Twin Gestation
2 yolk sacs, 2 amniotic sacs |
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Most common incidental finding in liver sonograms
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A capillary hemangioma (appears hyperechoic)
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