**Relative contraindication**


*Neuroimaging in Common Neurological Diseases Treated by Anticoagulants DOI: http://dx.doi.org/10.5772/intechopen.105128*


**CT brain** (**Figures 20–22**): Noncontrast CT brain is the investigation modality of choice for the patient who had a neurological disorder and was suspected of coagulopathy related symptoms. The most common finding is intracerebral hematoma (ICH), followed by SDH. The CT pattern that raises suspicious of coagulopathy related intracranial hemorrhage is multicompartments hemorrhage such as bleed in the parenchymatous and also in subarachnoid space and in subdural space at the time of initial CT study, which leads to suspicion of hemorrhage related to coagulopathy. The density pattern of hemorrhage is varying case by case as homogenous hyperdensity either or heterogeneous hyperdensity, fluid-hemorrhage level. The density of the hyperdensity portion is 60–80 HU.

#### **Figure 20.**

*A,B,C Axial NCCT brain of patient with history of acute aortic dissection type A S/P modified Bentall operation with hemiarch replacement with right carotid artery bypass and resternotomy with clot removal and CABG, on heparin and develops alteration of consciousness. Spontaneous intracranial hemorrhage mainly in subarachnoid space (SAH) (black arrow) with small fluid –level ICH (white arrow) in right frontal lobe.*

#### **Figure 21.**

*A,B,C Axial NCCT brain of a patient with congenital heart disease postsurgery (on warfarin), presented with alteration of consciousness. Spontaneous intracranial hemorrhage mainly in subarachnoid space (SAH) (black arrow) and ICH (white arrow) in left frontal lobe.*

#### **Figure 22.**

*A-F A 53-year-old man, with history of DM and HT presented with right hemiparesis and right facial palsy. Acute ischemic stroke was diagnosed at outside hospital. Treatment was giving rTPA at 9.20 p.m. At referred hospital, Axial NCCT at 0.10 a.m. (A, B) reveals ill-defined hypodensity area in left lentiform nucleus, left insular cortex and left high cortical frontal lobe. AI ASPECT score=8 (neuroradiologist reading score=7) Further treatment with mechanical thrombectomy (***Figure 20D***,***E***) was performed with completely reopening of left MCA and no immediate complication. Axial NCCT brain (07.33 a.m. the day after thrombectomy) reveals ICH in left basal ganglia with IVH.*
