Cerebrovascular accident (CVA) is a major cause of morbidity and death in sickle cell anemia (SCA). Transfusion of packed erythrocytes is widely used to prevent this complication. However, chronic transfusion may lead to iron overload, alloimmunization, or infections.

Sep 8, 2024 · Cerebral hemorrhagic contusions are a type of intracerebral hemorrhage, also sometimes considered a "brain bruise", and are common in the setting of significant head injury. They are usually seen on CT as hyperattenuating foci in the frontal lobes adjacent to the floor of the anterior cranial fossa and in the temporal poles.

The HU ratio and ASPECTS were negatively correlated with the infarct volume, and the HU difference was positively correlated with the infarct volume (P < 0.05). HU difference was an independent risk factor for prognosis of patients with MCAO treated by IVT.

We aimed to evaluate the relationship between the incidence of symptomatic vasospasm or hydrocephalus and the Hounsfield unit (HU) value of the subarachnoid space on brain computed tomography (CT) in patients with good-grade SAH treated with endovascular coiling.

CT has the ability to quantify the beam attenuation, hence the measurements are expressed in Hounsfield units (HU), which indicates the HU values of various stages of infarct pathologies associated with the brain. This study is based on HU in CT Brain images.

Jun 30, 2008 · An increase of brain water content by 1% will result in a CT attenuation decrease of 2.5 HU. On the left a patient with hypoattenuating brain tissue in the right hemisphere.

Endovascular treatment of acute intracranial artery occlusions has evolved rapidly. There are various treatment options, which include thrombolytic therapy, aspiration, or mechanical thrombectomy with a stent retriever.

Jul 7, 2024 · Patients with CVA may have a normal CT head scan on presentation with subtle oedema beginning at 6-12 hours, hypoattenuation after 24 hours and maximal oedema at 3-5 days. Identify hyperdense regions associated with blood, IV contrast or calcification.

Objective: We hypothesize that measuring Hounsfield units (HU) of blood in venous sinuses is a more reliable method to diagnose CVST and that normalizing the measured HU in relation to the patient's hematocrit levels may further improve detection of CVST in the pediatric population.

Cerebrovascular accident (CVA) is a major cause of morbidity and death in sickle cell anemia (SCA). Transfusion of packed erythrocytes is widely used to prevent this com-plication. However, chronic transfusion may lead to iron overload, alloimmunization, or infections. Cost and compliance may compromise transfusion therapy.