First test of choice for shoulder joint evaluation?

Ans. d (Digital x-ray) > c (USG) (Ref. Harrison's medicine 17th ed., Table 325-5)--"First test of choice" = ????--What does this mean? = 1 think they mean to ask initial test of choice.--So, initial test/first test/screening tool of choice for shoulder joint is X-ray for trauma and non-soft tissue aliments and for suspected soft tissue diseases, it is Ultrasound (7-15 MHz probe).-- Best/investigation of choice/diagnostic/ preferred should be MRI.DIAGNOSTIC IMAGING TECHNIQUES FOR MUSCULOSKELETAL DISORDERSMethodCurrent IndicationsUltrasound# Synovial cysts# Rotator cuff tears# Tendon injury99mTc MDP scintigraphy# Metastatic bone survey (most sensitive inv)# Evaluation of Paget's disease# Acute and chronic osteomyelitis111In-WBC scintigraphy# Acute infection# Prosthetic infection# Acute osteomyelitis67Ga scintigraphy# Acute and chronic infection# Acute osteomyelitisComputed tomography# Herniated intervertebral disk# Sacroiliitis# Spinal stenosis# Spinal trauma# Osteoid osteoma# Stress fractureMagnetic resonance imaging# Avascular necrosis# Osteomyelitis# Intraarticular derangement and soft tissue injury# Derangements of axial skeleton and spinal cord# Herniated intervertebral disk# Pigmented villonodular synovitis# Inflammatory and metabolic muscle pathologyMagnetic Resonance Imaging in MSK# MR imaging has revolutionized the imaging evaluation of almost all body areas but particularly those of the central nervous system and musculoskeletal system.# It has tremendous advantages over other imaging modalities in the evaluation of joints because of its excellent soft- tissue contrast, high resolution, and ability to image in every plane.