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Deep-Penetrating Reflection-Mode Photoacoustic Imaging
Published in Lihong V. Wang, Photoacoustic Imaging and Spectroscopy, 2017
Kwang Hyun Song, Lihong V. Wang
Figure 22.5A shows the maximum amplitude projection (MAP) image of the in vivo photoacoustic image of the cortical surface of a rat brain with the scalp and skull intact. The brightness represents optical absorption dominantly due to blood. Numbers 1 to 6 indicate the superior cerebral veins on the surface of the cerebral cortex, 7 shows the transverse sinus between the cerebrum and the cerebellum, 8 denotes the blood vessels in the skull, and 9 points to the superior saggital sinus. Figure 22.5B shows a corresponding open-skull anatomical photograph of the surface of the cerebral cortex acquired after removal of the dura mater. The structures in Figure 22.5A are ~3 mm below the scalp surface and match those in Figure 22.5B. The B-scan images associated with the dashed lines in Figure 22.5A are shown in Figure 22.5C. One of the advantages of the reflection-mode imaging over the orthogonal-mode imaging is the fine depth information. The layers shown in Figure 22.5C are the scalp, skull, dura mater, and cortical surface.
Neuroimaging
Published in Sarah McWilliams, Practical Radiological Anatomy, 2011
o The deep cerebral veins: the internal cerebral veins that run in the roof of the third ventricle and join to form the vein of Galen. This short vein lies in the quadrigeminal cistern. The vein of Galen joins the inferior sagittal sinus to become the straight sinus.
Review on the current treatment status of vein of Galen malformations and future directions in research and treatment
Published in Expert Review of Medical Devices, 2021
Panagiotis Primikiris, Georgios Hadjigeorgiou, Maria Tsamopoulou, Alessandra Biondi, Christina Iosif
In utero diagnosis and evaluation is very important and should nowadays include MRI imaging and to search for pseudo-feeders. The latter has been proven to be an important tool also after birth, not only in evaluating the brain parenchyma and ventricles and guiding therapeutics and timing of interventions but also in further elucidating angioarchitecture. Recent data have shown that the internal cerebral veins may communicate with the venous sac in some cases of VOGM [52]. In such cases occlusion of the VOGM venous sac can obstruct ICV drainage, unless there is a concurrent alternate drainage pathway. The detailed analysis of the angioarchitecture, using MRI protocols that include SWI sequences and 3DTOF, as well as CM or ASL MRA-MRV, may reduce procedure-related morbidity and mortality and enhance treatment planning, by providing further angioarchitectural data.