Abstract
Article: Comparative Efficacy of Ultrasonography and Acoustic Radiation Force Impulse (ARFI) Elastography in Prediction of Malignancy in Thyroid Nodules
Authors: Sarika Goel, MBBS, Ankur Malhotra, MBBS, MD, EDiR, DICRI, Arjit Agarwal, MBBS, MD, DNB, Shruti Chandak, MBBS, MD, Ashutosh Kumar, MBBS, MD, and Adil Khan, MBBS
Category: Other [OT]
Credit: 1.0 SDMS CME Credit
Objectives: After studying the article entitled “Comparative Efficacy of Ultrasonography and Acoustic Radiation Force Impulse (ARFI) Elastography in Prediction of Malignancy in Thyroid Nodules,” you will be able to:
Define acoustic radiation force impulse
Understand the benefit of using elastography in determining malignancy of thyroid nodules
Determine nodule characterization using ARFI elastography
Dynamic elastography was the first tool to allow what type of reproducible assessment of tissue consistency? Quantitative Qualitative Color Doppler Physical
What is the preferred method for detecting thyroid nodules? Blood test Physical examination Ultrasonography CT scan
ARFI uses short bursts of acoustic radiation force to assess the tissue by inducing what type of pulse to target tissue and detect slight displacements in the tissue? Electrical pulses Magnetic pulses Infrared pulses Ultrasound pulses
What is the gold standard for thyroid lesion characterization? Physical examination Blood test Ultrasonography Pathologic examination
What are the most sensitive indicators for malignancy of a nodule when using the Doppler application? Peripheral and internal vascularity Presence of aliasing No flow within the nodule Velocity and direction
On sonography, what thyroid nodule characteristic is most suspicious for malignancy? Cystic Coarse calcification Taller than wide solid nodule Hypoechoic halo
What is the hardness criterion indicative of malignancy? SWV range Noncompressible SWV cutoff value 2.87 m/s Compressible
Elastography is able to quantify which characteristic of a nodule? Malignancy Hardness Sponginess Fluid level
In one study mentioned, what is the most common sonographic appearance to a malignant nodule echotexture? Cystic Hyperechoic to surrounding tissue Calcified Hypoechoic to surrounding tissue
Hypoechogenicity of a nodule can also be indicative of what condition? Inflammation Carcinoma Nonmalignancy Hyperthyroidism
Footnotes