This fat high signal intensity can hide enhancement after Gadolinium injection in T1-weighted sequences, or an edematous hypersignal in fatty organs in T2-weighted sequences. We use cookies to guarantee the best experience on our website. These cookies make it possible to obtain anonymous statistics of attendance as well as error reports during the visit of the site, in order to optimize its ergonomics, its navigation and its contents.

T2-weighted sequences, with fat saturation and without the use of a contrast agent, produce an ‘indirect’ ductography image of the dilated lactiferous ducts, which appear in T2 hypersignal relative to the saturated fat, whereas the mammary tissue is in hyposignal .

Water, organ parenchyma (tissues of the hydrous type) and fat are the main constituents of the organism. If you continue to use the cookies, we will consider that you accept their use.

This is commonly achieved by exploiting the difference in resonance frequencies, precession frequencies or relaxation times between fat and water . A clinical example is shown below. You can refuse them by changing the settings, however this could impact on the proper functioning of the site. blgimg5. MRI can provide an excellent contrast between soft tissues by exploiting the particular characteristics of hydrogen atoms, according to whether they are bound to water or to lipid molecules.As fat tissues have a short relaxation time T1 they appear as a hypersignal in T1-weighted sequences.The relaxation time T2 of fat is also short, but the fat still appears as a relative high signal intensity in multi-echoes T2-weighted sequences (TSE, FSE).This fat high signal intensity can hide enhancement after Gadolinium injection in T1-weighted sequences, or an edematous hypersignal in fatty organs in T2-weighted sequences. Silicon appears as a T2 hypersignal, so it may be hard to differentiate it from lesions with a high T2 signal intensity (cysts) in breast imaging. If you would like to use

By disabling these cookies, we will not be able to analyze site traffic or detect errors. Fat suppression is a generic term used to describe any one of various methods employed to attenuate the usually hyperintense signal characteristic of fat on MRI. We use cookies to guarantee the best experience on our website.

It took 3 minutes to complete. Both were performed with roughly a 5,000TR and a 45TE. These cookies make it possible to obtain anonymous statistics of attendance as well as error reports during the visit of the site, in order to optimize its ergonomics, its navigation and its contents. It shows poorly limited edematous infiltrate with hypersignal on T2 and hyposignal on T1, in a hypertrophic infrapatellar fat body.

These cookies guarantee the proper functioning of the site, in particular the connection to your account (IMAIOS session cookies), site security ( These cookies guarantee the proper functioning of the site, in particular the connection to your account (IMAIOS session cookies), site security ( MRI shows inflammatory changes near the anterior tibial tuberosity (pre-tibial edema, T2 fat sat hypersignal, etc.)

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Fat is the brightest substance. Click on each category of cookies to enable or disable their use.To benefit all the functionalities of IMAIOS, we advise to keep the activation of all categories of cookies.

It can be applied to both T1 and T2 weighted sequences. The Fat-Sat technique is the most widely used method for fat suppression. T1-weighted pelvis image without fat-sat.

The STIR has a TI time of 140ms. Their molecules contain many hydrogen atoms whose nucleus is useful for the NMR signal. Click on each category of cookies to enable or disable their use.To benefit all the functionalities of IMAIOS, we advise to keep the activation of all categories of cookies. As part of e-learning when you watch a video, our service provider The relaxation time T2 of fat is also short, but the fat still appears as a relative high signal intensity in multi-echoes T2-weighted sequences (TSE, FSE).

To explore breast prostheses, dedicated silicon imaging sequences are used.

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The image on the right is a STIR sequence that took 4 minutes to complete. In a multitude of situations it is important to differentiate between the signal coming from water and organ parenchyma, and that of fat tissue. Clinically, this condition was also suspected.