In addition, the pressure may lead to a loss of blood supply to affected tissue with resulting infarction, and the blood released by brain hemorrhage appears to have direct toxic effects on brain tissue and vasculature. Inflammation contributes to the secondary brain injury after hemorrhage. Diagnosis
Stroke is diagnosed through several techniques: a neurological examination (such as the NIHSS), CT scans (most often without contrast enhancements) or MRI scans, Doppler ultrasound, and arteriography. The diagnosis of stroke itself is clinical, with assistance from the imaging techniques. Imaging techniques also assist in determining the subtypes and cause of stroke. There is yet no commonly used blood test for the stroke diagnosis itself, though blood tests may be of help in finding out the likely cause of stroke. In deceased people, an autopsy of stroke may help establishing the time between stroke onset and death. Physical examination
A physical examination, including taking a medical history of the symptoms and a neurological status, helps giving an evaluation of the location and severity of a stroke. It can give a standard score on e.g., the NIH stroke scale. Imaging
For diagnosing ischemic (blockage) stroke in the emergency setting:
CT scans (without contrast enhancements)sensitivity= 16% (less than 10% within first 3 hours of symptom onset)
specificity= 96%MRI scansensitivity= 83%
specificity= 98%For diagnosing hemorrhagic stroke in the emergency setting:

CT scans (without contrast enhancements)sensitivity= 89%
specificity= 100%MRI scansensitivity= 81%
specificity= 100%For detecting chronic hemorrhages, an MRI scan is more sensitive.For the assessment of stable stroke, nuclear medicine scans SPECT and PET/CT may be helpful.
Mesalazine, also known as mesalamine or 5-aminosalicylic acid (5-ASA), is a medication used to treat inflammatory bowel disease, including ulcerative colitis and Crohns disease. It is generally used for mildly to moderately severe disease. It is taken by mouth or rectally. The formulations which are taken by mouth appear to be similarly effective.Common side effects include headache, nausea, abdominal pain, and fever. Serious side effects may include pericarditis, liver problems, and kidney problems. Use in pregnancy and breastfeeding appears safe. In people with a sulfa allergy certain formulations may result in problems. Mesalazine is an aminosalicylate and anti-inflammatory. It works by direct contact with the intestines.Mesalazine was approved for medical use in the United States in 1987. It is on the World Health Organizations List of Essential Medicines. It is available as a generic medication and sold under many brand names worldwide. In 2019, it was the 229th most commonly prescribed medication in the United States, with more than 2 million prescriptions. Medical uses
It is used to treat inflammatory bowel disease, including ulcerative colitis and Crohns disease (effective only in colonic diseases). It is generally used for mildly to moderately active disease. It is taken by mouth or rectally. The formulations which are taken by mouth appear to be similarly effective. Side effects
There are no data on use in pregnant women, but the drug does cross the placenta and is excreted in breast milk.