Which imaging modality is most sensitive for detecting rotator cuff tears?

Which imaging modality is most sensitive for detecting rotator cuff tears?

• A. Ultrasound
• B. MRI
• C. X-ray
• D. CT

Answer: (B)

MRI is the most sensitive way to detect rotator cuff tears because it provides excellent soft tissue contrast and multiplanar visualization of the tendons, muscles, and their surrounding structures. This allows clear identification of small or partial-thickness tears, tendon degeneration, and associated muscle changes such as atrophy or fatty infiltration—details that other modalities miss or mischaracterize. Ultrasound can detect many tears and is very useful, especially for larger full-thickness tears and in experienced hands, but it is more operator-dependent and can miss subtle or retro- or intra-tendinous pathology. X-ray shows bones and joint alignment; it doesn’t visualize tendons directly, so tears aren’t seen. CT gives good bone detail but has inferior soft tissue contrast compared with MRI, making it less sensitive for rotator cuff pathology overall.

MRI is the most sensitive way to detect rotator cuff tears because it provides excellent soft tissue contrast and multiplanar visualization of the tendons, muscles, and their surrounding structures. This allows clear identification of small or partial-thickness tears, tendon degeneration, and associated muscle changes such as atrophy or fatty infiltration—details that other modalities miss or mischaracterize.

Ultrasound can detect many tears and is very useful, especially for larger full-thickness tears and in experienced hands, but it is more operator-dependent and can miss subtle or retro- or intra-tendinous pathology. X-ray shows bones and joint alignment; it doesn’t visualize tendons directly, so tears aren’t seen. CT gives good bone detail but has inferior soft tissue contrast compared with MRI, making it less sensitive for rotator cuff pathology overall.