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Feasibility and preliminary results of SPECT/CT arthrography of the wrist in comparison with MR arthrography in patients with suspected ulnocarpal impaction

  • Klaus Strobel
  • Isabelle Steurer-Dober
  • Angela J. Da Silva
  • Martin W. Huellner
  • Maria del Sol Pérez Lago
  • Elvira Bodmer
  • Urs von Wartburg
  • Patrick Veit-Haibach
  • Katharina Tornquist
  • Urs Hug
Original Article

Abstract

Purpose

To evaluate the feasibility and performance of SPECT/CT arthrography of the wrist in comparison with MR arthrography in patients with suspected ulnocarpal impaction.

Methods

This prospective study included 28 wrists of 27 patients evaluated with SPECT/CT arthrography and MR arthrography. Iodine contrast medium and gadolinium were injected into the distal radioulnar and midcarpal joints. Late-phase SPECT/CT was performed 3.5 h after intravenous injection of approximately 650 MBq 99mTc-DPD. MR and SPECT/CT images were separately reviewed in relation to bone marrow oedema, radionuclide uptake, and tears in the scapholunate (SL) and lunotriquetral (LT) ligaments and triangular fibrocartilage complex (TFCC), and an overall diagnosis of ulnar impaction. MR, CT and SPECT/CT imaging findings were compared with each other, with the surgical findings in 12 patients and with clinical follow-up.

Results

The quality of MR arthrography and SPECT/CT arthrography images was fully diagnostic in 23 of 28 wrists (82 %) and 25 of 28 wrists (89 %), respectively. SPECT/CT arthrography was not diagnostic for ligament lesions due to insufficient intraarticular contrast in one wrist. MR and SPECT/CT images showed concordant findings regarding TFCC lesions in 22 of 27 wrists (81 %), SL ligament in 22 of 27 wrists (81 %) and LT ligament in 23 of 27 wrists (85 %). Bone marrow oedema on MR images and scintigraphic uptake were concordant in 21 of 28 wrists (75 %). MR images showed partial TFCC defects in four patients with normal SPECT/CT images. MR images showed bone marrow oedema in 4 of 28 wrists (14 %) without scintigraphic uptake, and scintigraphic uptake was present without MR bone marrow oedema in three wrists (11 %). Regarding diagnosis of ulnar impaction the concordance rate between CT and SPECT/CT was 100 % and reached 96 % (27 of 28) between MR and SPECT/CT arthrography. The sensitivity and specificity of MR, CT and SPECT/CT arthrography were 93 %, 100 % and 100 %, and 93 %, 93 % and 93 %, respectively.

Conclusion

SPECT/CT arthrography of the wrist is feasible. Regarding diagnosis of ulnar impaction we found a high concordance with MR arthrography. SPECT/CT arthrography of the wrist is an alternative to MR arthrography in patients with contraindications to MR imaging.

Keywords

SPECT/CT arthrography MR arthrography Wrist Ulnar impaction 

Notes

Acknowledgments

We thank the team of the chief technician Savo Matijasevic for their great support and performance of the MR and SPECT/CT investigations. This study was supported financially by Philips Healthcare.

Conflicts of Interest

Angela da Silva is a medical physicist and an employee of Philips Healthcare. She supported the study with her technical and linguistic knowledge.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Klaus Strobel
    • 1
    • 4
  • Isabelle Steurer-Dober
    • 1
  • Angela J. Da Silva
    • 2
  • Martin W. Huellner
    • 1
  • Maria del Sol Pérez Lago
    • 1
  • Elvira Bodmer
    • 3
  • Urs von Wartburg
    • 3
  • Patrick Veit-Haibach
    • 1
  • Katharina Tornquist
    • 1
  • Urs Hug
    • 3
  1. 1.Department of Nuclear Medicine and RadiologyLucerne Cantonal HospitalLucerneSwitzerland
  2. 2.Advanced Molecular Imaging, Philips HealthcareSan JoseUSA
  3. 3.Division of Hand and Plastic SurgeryLucerne Cantonal HospitalLucerneSwitzerland
  4. 4.Röntgeninstitut/NuklearmedizinKantonsspital LuzernLuzernSchweiz

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