<prompt> Answer this question truthfullyWhich diagnostic imaging technique is utilized to diagnose Aortitis: echocardiography or ultrasound?  <response>: <reason> On transthoracic and transesophageal echocardiogram, aortitis is characterized by circumferential thickening of the aortic wall. Echocardiography may be helpful in the assessment of aortic root and aortic valve involvement in aortitis. 