Life-threatening arteriovenous malformation of the maxillomandibular region and treatment outcomes.

We report on cases of life-threatening maxillomandibular arteriovenous malformations (AVM) whereby patients had successful endovascular treatment with good outcomes. Out of a total 93 facial AVMs treated endovascularly between 1991 and 2009, five patients (5.4%) had maxillomandibular AVMs.

Degree of midline shift from CT scan predicted outcome in patients with head injuries.

Objective: To evaluate the relationship between the degree of midline shift by Computed Tomography (CT) finding and Glasglow Coma Score (GCS) as a predictive of clinical outcome in patients after head injury. METHOD AND METHOD: The present study was performed by retrospectively reviewing 216 consecutive cases of traumatic head injury admitted to the trauma center in Siriraj Hospital from 1999 until 2004. All patients were evaluated for level of consciousness by a neurosurgeon determining by GCS and underwent CT brain for evaluation of intracranial hemorrhage and midline shift.

Evaluation of image quality and lens's radiation dose of a low-dose cranial CT scan.

Objective: To determine the lowest miliampere-second (mAs) of a cranial computed tomography (CT) scan that can maintain acceptable image quality on cranial CT scan which might help reducing the risk of cataract formation.

Material And Method: The present study was performed on the 148 patients in routine daily practice sent for diagnosis of intracranial conditions by a cranial CT scan. During the cranial CT scanning, each lens's radiation dose on patient's eyes was measured by a thermoluminescent dosimeter Clinical image quality, particularly in analysis of gray and white matter differentiation, was evaluated independently using a 5 point scale by two radiologists.

Patterns of cranial venous system from the comparative anatomy in vertebrates. Part I, introduction and the dorsal venous system.

Many classifications of the cerebral venous system are found in the literature but they are seldom based on phylogenic study. Among vertebrates, venous drainage of the brain vesicles differs depending on the species. Due to the variability, poorly descriptive articles, and many different names used for the veins, the comparative study of the cranial venous system can hardly be performed in detail.

Vascular loop compressing facial nerve in hemifacial spasm: demonstrated by 3D-phase contrast magnetic resonance angiography in 101 patients.

Background: Vascular compression of the facial nerve is deemed to be the common cause of hemifacial spasm producing emphatic transmission. Although facial nucleus supersensitivity is more accepted as the main cause of hemifacial spasm.

Purpose: To determine the vascular loop compression of the facial nerve in patients with hemifacial spasm by 3D-phase contrast (PC) magnatic resonance imaging (MRI).