Table 1 Inclusion and exclusion criteria for all participants

All participants

• MR suitability

• Pregnancy or breast feeding

• Written informed consent

• Any anatomical anomaly of LUT/genitalia

• Any LUT malignancy

• Claustrophobia

SCI patients

• Age limit: > 18 years

• Symptomatic UTI

• Neurogenic detrusor overactivity

• Refractory to antimuscarinic treatment

• Scheduled for intradetrusor onabotulinumtoxinA injections

Healthy controls

• Age limits: > 18 years

• Impaired LUT function

• Unimpaired LUT function

• Any LUTS (3-day bladder diary)

• No LUTS (3-day bladder diary)

• Any number of episodes of urinary urgency/week

• No episode of urinary urgency/week

• Urinary frequency > 8/24 h

• Urinary frequency < 8/24 h

• Any craniocerebral injury or surgery

• Any permanent ferromagnetic implant

• Any previous surgery of LUT/genitalia

• UTI

• PVR > 150 mL