Contrast Ultrasound of the Small Intestine in Patients With Crohns Disease (KULT)

• Correlation between elastography scans of Magnetic Resonance Imaging and Ultrasound of the small bowel [ Time Frame: up to 1 week ] [ Designated as safety issue: No ]
• Correlation between Doppler Score and Contrast Enhanced Ultrasound Score [ Time Frame: up to 1 week ] [ Designated as safety issue: Yes ]
  Doppler score (Limberg score) and Contrast Enhanced Ultrasound score are obtained during the same scanning procedure
• Correlation between greatest bowel wall thickness and disease activity measured in Ultrasound and Magnetic Resonance Imaging [ Time Frame: up to 1 week ] [ Designated as safety issue: No ]
• Correlation between Ultrasound score and Faeces Calprotectin [ Time Frame: up to 2 months ] [ Designated as safety issue: No ]
• Correlation between Crohns disease activity index and Ultrasound score [ Time Frame: up to 2 months ] [ Designated as safety issue: No ]

The purpose of this study is to determine how relevant dynamic ultrasound scans using contrast agents (SonoVue) is in the diagnosis of Crohns disease in the small bowel, compared to dynamic Magnetic Resonance Imaging (MRI) of the small bowel.

Crohns disease (CD) is a lifelong chronic Inflammatory Bowel Disease (IBD) normally with an early debut. It requires continuous evaluation with either endoscopy, Magnetic Resonance Imaging (MRI), Computed Tomography (CT) or Wireless Capsule Endoscopy (WCE). These methods are either expensive, invasive or with uses radiation. Therefore UltraSound (US), as a cheap, fast and well tolerated examination of the small bowel are tested against the the validated MRI examination of the small bowel. Both examinations are using intra venous (i.v.) contrast agents. Obtained results are compared to disease activity.

Hypothesis is, that dynamic US is comparable to dynamic MRI and therefore should be the first examination of choice in evaluating patients with CD.

This study is a pilot study only.

Patients treated on Regional Hospital of Silkeborg.

Inclusion Criteria:

• Patients with known Crohns Disease
• 18 years old or older.
• Referred to a Magnetic Resonance Imaging scan of the small bowel

Exclusion Criteria:

• Contraindications to or not suitable of a Magnetic Resonance Imaging
• Liver transplant
• nursing og pregnancy
• Known Allergy of SonoVue
• Acute Myocardial infarction < 4 weeks
• Coronary angiography < 4 weeks
• Electrocardiogram changes < 4 weeks
• frequent and repetitive angina pectoris symptoms within the last week.
• Heartfailure
• serious arrhythmia
• right to left heart shunt
• Very high pulmonary artery pressure
• uncontrolled hypertension
• Adult respiratory distress syndrome