ABSTRACT
CT perfusion is a new technique that is rapid, available and minimally invasive which provides functional vascular information and can be made after conventional CT and CT angiography at the same imaging session. CT perfusion applications have focused on ischemic stroke with only a short series of applications to brain death diagnosis. Instead, CT angiography is frequently performed as a confirmatory test of brain death, but it has not been completely validated yet. Hence CT perfusion may help in supporting the diagnosis of brain death. We present the case of a 12-year-old child with clinical criteria for brain death who required a confirmatory test. CT angiography and CT perfusion were performed. Both revealed the absence of any intracranial blood flow which supported the clinical diagnosis of brain death.
Subject(s)
Brain Death/diagnosis , Brain/diagnostic imaging , Cerebral Angiography/methods , Cerebrovascular Circulation , Tomography, X-Ray Computed/methods , Brain/blood supply , Child , Female , HumansSubject(s)
Carcinoma, Basal Cell/pathology , Skin Neoplasms/pathology , Aged , Female , Humans , Leg , Magnetic Resonance Imaging , Neoplasm InvasivenessABSTRACT
An early diagnosis is crucial in herpes simplex virus encephalitis patients in order to institute acyclovir therapy and reduce mortality rates. Magnetic resonance imaging (MRI) is considered the gold standard for evaluation of these patients, but is frequently not available in the emergency setting. We report the first case of a computed tomography (CT) perfusion study that helped to establish a prompt diagnosis revealing abnormal increase of blood flow in the affected temporoparietal cortex at an early stage.
Subject(s)
Encephalitis, Herpes Simplex/diagnostic imaging , Tomography, X-Ray Computed , Humans , Male , Middle Aged , Parietal Lobe/blood supply , Temporal Lobe/blood supplyABSTRACT
We present the first imaging report of perforated appendicitis in an umbilical hernia. Computed tomography demonstrated a gas-forming abscess within an umbilical hernia and the cecum was found inside the hernial sac, with an inner relation to the abscess. Computed tomographic findings suggested appendicitis as possible diagnosis, which was confirmed at surgery. Physicians must consider appendicitis within the differential diagnosis of an abdominal abscess located near to the cecum, even at an unexpected location.
