A contrast dye is sometimes injected into a vein during an MRI to improve the ability to see certain structures. All dyes used for MRIs contain a metal called gadolinium. These dyes -- called gadolinium-based contrast agents -- are generally very safe, but side effects are possible.

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La teleterapia (tele: lejos) es la forma de radioterapia que utiliza la radiación procedente de un equipo generador situado a cierta distancia de la zona a irradiar. Esta modalidad de irradiación comprende una amplia gama de equipos. La radioterapia convencional o de ortovoltaje, de escasa utilización, se realiza por medio de equipos de rayos X de energías bajas o medias. Los equipos de alta energías o de megavoltaje más usados actualmente comprenden la bomba de cobalto y los aceleradores lineales.

Confira as principais características da ressonância magnética com contraste, as indicações da RM contrastada, como é feita, além de informações sobre riscos e contraindicações.

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