We describe a case involving a ruptured intradural aneurysm of the meningeal branch of the occipital artery arising from the external carotid artery and connecting with the caudal loop of the posteroinferior cerebellar artery (PICA) by the dural fistula. Angiography of the left external carotid artery showed a saccular aneurysm of the occipital artery, but the picture of the left vertebral arte...

PURPOSE Metacarpal fractures are common in hand surgery. Metacarpal shortening ranging from 2 mm to as much as 10 mm has been deemed acceptable in the literature. We examined the effect of metacarpal shortening on interosseous muscle architecture and predicted force production capacity based on the standard muscle length-tension curve (commonly known as the Blix curve). METHODS The dorsal int...

OBJECTIVE To describe the sonographic findings of lower extremity interosseous membrane disruption with computed tomographic and surgical correlation. METHODS Three patients with sonographic evaluation of the lower extremity interosseous membrane were identified through the clinical experience of 1 author over a 5-year period. Sonographic images of the symptomatic and unaffected lower extremi...

The caudatoputamen (CP) and giobus paiiidus (GP) are supplied by vessels often involved with stroke in both rat and human. The pattern of vascular supply to the CP and GP in rat has, in contrast to humans, been only partially described. The vascular pattern to the rat CP and GP is described utilizing vascular endocasts and scanning electronmicroscopy in aging, nonnotensive rats. Endocasts were ...

Embryologic development of the basilar artery occurs along two axis systems: longitudinal fusion and axial fusion. Longitudinal fusion consists of midline fusion of paired ventral arteries and reflects the simplified pattern of arterial anatomy found in the spinal cord. Axial fusion consists of fusion of the distal basilar artery, which arises from the caudal division of the internal carotid ar...

Hashimoto, M., K. Shinozuka, Y. Tanabe, S. Gamoh, T. Hara, M. S. Hossain, Y. M. Kwon, M. Kunitomo and S. Masumura. Hypotension induced by exercise is associated with enhanced release of adenyl purines from aged rat artery. Am. J. Physiol. 276 (Heart Circ. Physiol. 45): H970–H975, 1999.—To determine whether the antihypertensive effects of exercise are associated with release of ATP and its metab...

We investigated the SMF effects on hemodynamics in the caudal artery-ligated rat as an in vivo ischemia model using noninvasive near-infrared spectroscopy (NIRS) combined with power spectral analysis by fast Fourier transform. Male Wistar rats in the growth stage (10 weeks old) were randomly assigned into four groups: (i) intact and nonoperated cage control (n = 20); (ii) ligated alone (n = 20)...

The caudatoputamen (CP) and globus pallidus (GP) are supplied by vessels often involved with stroke in both rat and human. The pattern of vascular supply to the CP and GP in rat has, in contrast to humans, been only partially described. The vascular pattern to the rat CP and GP is described utilizing vascular endocasts and scanning electronmicroscopy in aging, normotensive rats. Endocasts were ...

The subject was a white male who died of a cerebral hemorrhage at sixty-six years of age. The right internal spermatic artery, instead of having its origin from the aorta at the normal level, arose above that of the renal artery. It passed caudally between the right renal artery and the renal vein; from this point on, it had a normal descent to the testis. An anomalous vascular connection in th...