Neurosurgery
-
Many patients with unruptured intracranial aneurysms (UIAs) remain untreated if the risk of treatment exceeds the estimated risk of aneurysm rupture, potentially leading to diagnosis-related stress and anxiety. Working status may serve as a marker for the total level of function including mental health and psychological burden of the condition. The aim of the study was to assess the working status before and after a diagnosis of an untreated UIA. ⋯ The work participation of patients diagnosed with UIA is low prediagnosis compared with the general population and decreases significantly postdiagnosis.
-
Recent studies indicate that 123 I-iomazenil ( 123 I-IMZ) single-photon emission computed tomography (SPECT) can demonstrate neuronal viability. Although cognitive dysfunction has been recognized as an important issue in adult patients with moyamoya disease (MMD), no standard neuroradiological methods to define such conditions have been established. We examined the relationship between cognitive function and 123 I-IMZ SPECT before and after revascularization in patients with MMD. ⋯ Preoperative cognitive function was associated with 123 I-IMZ uptake in adult patients with MMD. After revascularization, cognitive function could be recovered in the viable areas of the brain, which is consistent with 123 I-IMZ SPECT findings.
-
Linear metrics for ventricular volume play a large role in the rapid, approximate evaluation of ventricular volume. In this article, we automatically extract linear measures of ventricular volume to explore their correlation with lateral ventricular volume (LVV) in the healthy adult population and comprehensively define normal values. ⋯ ALVI is a newer index with strong correlation with LVV and has strong potential for clinical use. Both FOHR and ER show moderate correlation with LVV. Reference values for linear estimates of ventricular volume may help clinicians better identify patients with pathological ventriculomegaly.
-
Ruptured aneurysms visualized by vessel wall MRI (VW-MRI) exhibit characteristic aneurysm wall enhancement (AWE). A secondary bulge of the aneurysmal wall, called a bleb, is often the site of rupture in ruptured aneurysms. We hypothesized that a higher degree of AWE would identify the rupture point in aneurysms with multiple blebs. ⋯ AWE is associated with the bleb rupture status independent of WSS. Contrast-enhanced VW-MRI may be a useful noninvasive tool for identifying the rupture point and guiding the treatment strategy.