Initial experience with visualizing hand and foot tendons by dual-energy computed tomography

Area of Science:

• Radiology
• Medical Imaging
• Orthopedics

Background:

• Hand and foot tendon injuries are common.
• Accurate visualization of these tendons is crucial for diagnosis and treatment.
• Traditional imaging methods may have limitations in depicting tendon structures.

Purpose of the Study:

• To evaluate the feasibility of using dual-energy computed tomography (CT) for visualizing hand and foot tendons.
• To assess the ability of dual-energy CT to depict tendon anatomy and pathology.

Main Methods:

• Twenty patients with hand or foot pain underwent dual-source CT using dual-energy mode.
• Image acquisition involved specific tube voltages and current ratios.
• Postprocessing included volume rendering techniques (VRT) and multiplanar reconstruction (MPR).
• Surgical or follow-up studies confirmed suspected lesions.

Main Results:

• Dual-energy CT successfully visualized various hand and foot tendons, including flexor pollicis longus, flexor digitorum superficialis/profundus, Achilles, extensor hallucis longus, and extensor digitorum longus.
• The technique clearly depicted tendon shape and fixation points.
• Pathologic changes such as thickening and adherence were also clearly shown.
• Some limitations were noted in visualizing the peroneus longus tendon and distal extensor tendons.

Conclusions:

• Dual-energy CT is a feasible and valuable method for visualizing hand and foot tendons.
• It provides clear visualization of both anatomical details and pathological alterations in tendons.
• This technique offers a new diagnostic approach for hand and foot tendon conditions.