Cerebral angiography: conflicting testimony

Children's causal inferences from conflicting testimony and observations.

Preschoolers use both direct observation of statistical data and informant testimony to learn causal relationships. Can children integrate information from these sources, especially when source reliability is uncertain? We investigate how children handle a conflict between what they hear and what they see. In Experiment 1, 4-year-olds were introduced to a machine and 2 blocks by a knowledgeable...

Cerebral angiography and Egas Moniz.

In the early 1920s, Egas Moniz, professor of neurology in Lisbon, Portugal, undertook a task no one really considered possible: the radiographic imaging of the brain in a living human subject. At the time, the only approach to visualizing cerebral abnormalities was Dandy’s method of introducing air into the ventricular system. But what a crude method it was. What agony the patient had to endure...

Neurologic Complications of Cerebral Angiography

One might dismiss the article in this issue by Heiserman et al ( 1) on neurologic complications of cerebral angiography by arguing that it brings nothing new to the medical literature. Especially those of us who are quite senior neuroradiologists are familiar with the kinds of findings reported in this paper. The article reports a number of positive and negative correlations of neurologic compl...

Cerebral angiography in brainstem revascularization.

Surgical management of patients with vertebrobasilar insufficiency has been developed within the past decade. Cerebral angiography plays a crucial role in identifying potential surgical candidates and in directing the surgical approach. Fifty-two patients underwent brainstem revascularization procedures at Henry Ford Hospital between November 1979 and August 1985. Twelve occipital artery to ant...

Cerebral angiography in neurosurgical emergencies.