Cases in Radiology: Episode 4 (musculoskeletal, MRI, x-ray)

Brachial Plexus MRI (II/II)

Brachial Plexus MRI (I/II)

Tags: Brachial Plexus, 3D STIR SPACE, 3D MR Myelography

Source:

Vargas et al. New approaches in imaging of the brachial plexus. European journal of radiology (2010) vol. 74 (2) pp. 403-10

Meniscal Tears

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Tags: Meniscus, knee, full-thickness tear

Source:

Araceli Cabanillas's Images from radRounds

Partial Tears of Achilles Tendon

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Tags: Achilles tendon, ankle, partial tears

Source:

Araceli Cabanillas's Images from radRounds

Musculoskeletal MRI 101 (II/II)

Tags: Meniscal tears, FSE, echo train length, ETL, echo spacing, T2 decay, signal jump, image blur, magnetization transfer, k-space, artefact

Musculoskeletal MRI 101 (I/II)

Tags: MSK, musculoskeletal MRI, protocol, magnetization transfer, magnetization transfer suppression, magic angle effect, tissue contrast, pulse sequences

Foot (Midfoot) MRI

Imaging Planes

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Tags: Foot, MSK, protocol, imaging planes

Source:

Moeller T B and Reig E. Magnetic Resonance Imaging: Bones, Joints. In: MRI Parameters and Positioning. Thieme: Stuttgart·NewYork, 2003; 134-136.

Brachial Plexus MRI (I/II)

Gross Anatomy

MRI Anatomy

Brachial Plexus MRI (II/II)

Tags: Brachial Plexus, MSK, protocol, imaging planes, anatomy

Sources:

Sureka et al. MRI of brachial plexopathies. Clinical radiology (2009) vol. 64 (2) pp. 208-18.

Gerevini et al. Diagnostic value and surgical implications of the magnetic resonance imaging in the management of adult patients with brachial plexus pathologies. Surg Radiol Anat (2008) vol. 30 (2) pp. 91-101.

van Es H W, Witkamp T D and Feldberg M A M. Brachial Plexus. In: Imaging of the Shoulder. Springer: Berlin Heidelberg, 2006; 287-296.

Hip MRI

Imaging Planes

Imaging Protocol

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Coil Positioning

Tags: Hip, MSK, protocol, imaging planes

Source:

MSK Protocols for MAGNETOM Avanto - Hip

Application Hints & Video - Hip (Siemens)

Elbow MRI

Imaging Planes

Imaging Protocol


Coil Positioning

Tags: Elbow, MSK, protocol, imaging planes

Source:

MSK Protocols for MAGNETOM Avanto - Elbow

Application Hints & Videos - Elbow (Siemens)

Shoulder MRI

Imaging Planes

Imaging Protocol (with iPAT)

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Coil Positioning

Tags: Shoulder, Imaging planes, protocol, parallel imaging

Source:

MSK Protocols for MAGNETOM Avanto – Shoulder

Application Hints & Videos - Shoulder (Siemens)

Magic Angle Phenomenon

Illustrations

Tags: Magic angle effect, magic angle phenomenon, tendon, hyaline cartilage, fibrous cartilage, degeneration, tendinitis, partial tear

Sources:

Li and Mirowitz. Manifestation of magic angle phenomenon: comparative study on effects of varying echo time and tendon orientation among various MR sequences. Magnetic resonance imaging (2003) vol. 21 (7) pp. 741-4.

Erickson et al. The "magic angle" effect: background physics and clinical relevance. Radiology (1993) vol. 188 (1) pp. 23-5.

Mengiardi et al. Magic angle effect in MR imaging of ankle tendons: influence of foot positioning on prevalence and site in asymptomatic subjects and cadaveric tendons. Eur Radiol (2006) vol. 16 (10) pp. 2197-2206.