#angiography

~ na skin de trabalhador sksksksks

Catching the Flow

Your memories, perception and thoughts all exist in your neocortex, grooved tissue that comprises over three-quarters of your brain. Its only blood supply comes from the pial arterial vasculature, a network of tiny blood vessels that are difficult to image in detail. Although blood vessels have been successfully imaged at high resolution using live, time-of-flight magnetic resonance angiography (TOF-MRA) – an approach that detects the flow of water protons in blood – it was ruled out for pial arteries due to their slow blood flow; until now. Researchers successfully imaged the pial arteries of four adults with TOF-MRA by using extremely small voxels – voxels are the 3D equivalent of pixels and refer to cubes of space. The resulting high-resolution images (pictured) captured pial arteries down to one voxel in diameter. TOF-MRA, therefore, wasn't limited by slow blood flow but by image resolution and can now be used in pial vasculature studies.

Written by Lux Fatimathas

Video by Saskia Bollmann and colleagues

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA

Video originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)

Published in eLife, April 2022

Para realizarlo se efectúa una punción en una arteria de la ingle (bajo anestesia local) para introducir un catéter (pequeño tubo), que se avanza en el interior de los vasos sanguíneos hasta el cuello, para luego inyectar el líquido de contraste que hace posible poder ver de los vasos sanguíneos utilizando una máquina especial de rayos x, denominada angiógrafo.

Se utiliza principalmente para identificar:

Malformaciones vasculares, vasos sanguíneos anormales en el cerebro.

Aneurisma,vaso sanguíneo abultado.

Estrechamiento de las arterias en el cerebro.

Vasculitis, inflamación de los vasos sanguíneos en el cerebro.

Evaluar el flujo sanguíneo

Encontrar un coágulo que pueda causar un accidente cerebrovascular.

https://www.msdmanuals.com/es-mx/hogar/multimedia/video/v717329_es

Rereading my notes and adding more information as a cheat sheet sinces its open book (though we all know open book doesn't really give enough time to refer lol).

So, I'm hoping to get through all my lecture notes within 10-15 days (6 systems) and do SEQs and OSPEs. Hope to survive.

Will also attempt some formative assessments to train myself to answer within the restricted time. My seniors gave me a heads up saying the 1 hour mark is not enough but we can do this.

Anxiety crippling in quite fast... and the exam adrenaline is coursing through my veins. Those two factors alone made me seat at my studying table for 4 hours straight no breaks per study block. Hope to keep up the momentum though, lots to cover. Will keep an update on this journey. Tumblr has sort of been my Medschool diary sort of thing.

Have a good day people 💪🏻

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