Is the volume of the caudate nuclei associated with area of secondary hyperalgesia? – Protocol for a 3-Tesla MRI study of healthy volunteers

Morten Sejer Hansen   ¹ , MD ;   Mohammad Sohail Asghar   ¹ , MD, PhD ;   Jørn Wetterslev   ² , MD, PhD ;   Christian Bressen Pipper   ³ , MSc, PhD ;   Johan Johan Mårtensson   ⁴ , PhD ;   Lino Becerra   ⁵ , PhD ;   Anders Christensen   ⁶ , MD, PhD ;   Janus Damm Nybing   ⁶ , MSc ;   Inger Havsteen   ⁶ , MD ;   Mikael Boesen   ⁶ , MD, PhD ;   Jørgen Berg Dahl   ⁷ , MD, DMSc, MBA

¹ Department of Anaesthesiology, 4231, Centre of head and orthopaedics, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark

² Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 7812, Copenhagen, Denmark

³ Copenhagen University, Faculty of health, Section of biostatistics, Copenhagen, Denmark

⁴ Lund University, Department of psychology, Lund, Sweden

⁵ Childrens Hospital, Harvard University, Boston, MA, United States

⁶ Department of Radiology, Copenhagen University Hospital, Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark

⁷ Department of Anaesthesiology, dep. Z, Copenhagen University Hospital, Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark