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Liver Sonogram- Ultrasonido hepático

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Uploaded by on Aug 26, 2009

Enviado por " CONSULTORIO MÉDICO JAVIER FLORES BUISSON " MÁNCORA- PERÚ...
URL: http://consultoriomedicofloresmancora.es.tl/ ...
ANATOMIA HEPATICA:Funcionalmente lo podemos dividir en tres lóbulos:
Lóbulo derecho: está separado del izquierdo por la cisura lobar principal que pasa a través de la fosa de la vesícula biliar hasta la vena cava.
Lóbulo izquierdo
Lóbulo caudado: situado en la parte posterior, teniendo como limites posterior la vena.
Anatomía de Couinaud:
División anatomo-quirúrgica del hígado en 8 segmentos teniendo cada uno de estos su propio aporte sanguíneo (arteria hepática, vena porta, vena hepática), linfático y drenaje biliar. Esto permite al cirujano resecar un segmento hepático dañado dejando intacto el resto del lóbulo.
Tamaño hepático:En un corte longitudinal al nivel de la línea media se considera normal si mide igual o menos de 13 cm y se considera que existe una hepatomegalia si el tamaño es superior a 15 cm.
Ecoestructura: El parénquima hepático es ligeramente ecogénico y presenta una ecoestructura relativamente fina y homogénea. Es más ecogénico que el parénquima renal y menos que el páncreas.
Kidney Stone Disease / Evaluation


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Sonogram (Ultrasound)
Sonography is often used for patients in whom intravenous contrast is contraindicated. Sonograms provide excellent assessments of the kidneys and bladder, but are inferior to the IVP and CT scan in evaluation of the ureters. The presence of all stones types within the kidney can be identified by sonography. The size and position of the stone can be assessed by ultrasound guidance. The finding of a dilated kidney on sonography may suggest the presence of obstruction lower downstream within the ureter. The advantage of ultrasonography is that it avoids the exposure to radiation. The disadvantage, as mentioned above, lies in its inability to follow the course of the small and often tortuous ureters.

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