{"ok":true,"nota":{"id":"924850e57a2456e2","slug":"una-resonancia-de-flujo-4d-detecta-diferencias-de-presion-dentro-del-c-924850","titulo":"Una resonancia de flujo 4D detecta diferencias de presión dentro del corazón en pacientes con miocardiopatía h","resumen":"Se comparó una técnica de resonancia magnética de flujo 4D con el ecocardiograma en 38 pacientes con miocardiopatía hipertrófica y 38 personas sanas. Se midieron las diferencias de presión dentro del ventrículo izquierdo y la velocidad con que se propaga el flujo.","fuente":"medrxiv","fuenteNombre":"medRxiv · preprints","color":"#1f7a4d","autor":"Stipechi, L. V., Craiem, D., Gencer, U., Casciaro, M. E., Hulot, J.-S., Hagege, A., Soulat, G., Mousseaux, E.","url":"https://www.medrxiv.org/content/10.64898/2026.10.15.26365692v1?rss=1","imagen":"/hoy/portada/924850e57a2456e2","tema":"salud","subtemas":["cardiología","miocardiopatía hipertrófica","resonancia magnética","diagnóstico por imágenes","función diastólica"],"entidades":["pacientes con miocardiopatía hipertrófica","ventrículo izquierdo"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-21T00:00:00.000Z","indexTs":"2026-10-21T16:39:55.345Z","hash":"3a4c8f39b9d44e80bfc42b90953b8bbb494a21c2c2007606ad45f070e56b78d7","tsa":{"time":"Oct 21 16:40:53 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"El estudio busca una forma de evaluar la rigidez del corazón sin depender del ecocardiograma, que tiene límites con ciertos pacientes. Para alguien de acá con esta enfermedad, un método no invasivo más preciso podría facilitar el diagnóstico y el seguimiento en el futuro. Todavía es una comparación con un número chico de personas, así que no alcanza para cambiar la práctica clínica.","quienFirma":"medRxiv (preprint; institución principal no identificada en el resumen)","confianza":"preprint","consulta":null},"sello":{"hash":"3a4c8f39b9d44e80bfc42b90953b8bbb494a21c2c2007606ad45f070e56b78d7","sello":"26bf42c7bbc6a9543094c9af03acee60ebd1cb44d7822c232f7aaf79c186244e","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6572327,"aleatorio":"d83e967e4c34cdf1b7eff62e6ba3c2a80c045b63fe1850f9291b003cd2f10aa6","tiempo":"2026-10-21T16:40:30.000Z"},"nist":{"cadena":2,"pulso":1993369,"salida":"46902ECFB36399313FFB65B445E71293DBF949380A38ED8B222CF72E430037F81238506B220BC468F19AAF1083C6EF424CA492E1A3404D8F36DA9E790C7B253D","tiempo":"2026-10-21T16:40:00.000Z"},"noAntes":"2026-10-21T16:40:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 21 16:40:53 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Left Ventricular Diastolic Intraventricular Pressure Differences and Propagation Velocity with 4D-Flow MRI in Patients with Hypertrophic Cardiomyopathy","descripcion":"Background: Transthoracic echocardiography (TTE) remains the gold standard for assessing left ventricular (LV) diastolic dysfunction (DD), but noninvasive alternatives are needed to overcome geometric and acoustic limitations. 4D-Flow MRI enables comprehensive assessment of intraventricular pressure differences (IVPDs) and flow propagation velocity (VP). We aimed to evaluate 4D-Flow-derived IVPDs and VP in patients with hypertrophic cardiomyopathy (HCM). Methods: Thirty-eight HCM patients and 38 age- and sex-matched healthy controls underwent TTE and 4D-Flow MRI. Spatiotemporal maps of velocity and IVPDs, decomposed into inertial and convective components, were derived along the main inflow ","pubDate":"2026-10-21","url":"https://www.medrxiv.org/content/10.64898/2026.10.15.26365692v1?rss=1"},"indexado":"2026-10-21T16:39:55.345Z"}}