| Autor: |
Terry Morrone, Robert Wolf, Raymond V. Damadian, Rajendra Shenoy |
| Rok vydání: |
1989 |
| Předmět: |
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| Zdroj: |
Magnetic Resonance Imaging. 7:IV |
| ISSN: |
0730-725X |
| DOI: |
10.1016/0730-725x(89)90353-6 |
| Popis: |
A method for obtaining in the course of a single scan T1-weighted and T2-weighted NMR imaging data for a plurality of selected planes in an object using nuclear magnetic resonance techniques. The method is accomplished by positioning an object to be imaged in a static homogeneous magnetic field and then carrying out a plurality of repetitions of a repetition sequence composed of NMR excitation and magnetic field gradient pulses for a plurality of selected planes in the object. The repetition sequences for each of the selected planes include a combination of a T1-weighted pulse sequence having a TE1 and TR1 suitable for obtaining T1-weighted NMR imaging data and a T2-weighted pulse sequence having a TE2 and TR2 suitable for obtaining T2-weighted NMR imaging data. The repetition sequence for each selected plane is repeated a plurality of times and carried out in a manner so as to encode spatial information into the collection of NMR signals. Also, the T1-weighted and T2-weighted pulse sequences for each selected plane is carried out during the recovery time intervals provided in the repetition sequence for other selected planes. In this manner, T1 and T2-weighted NMR image data for a plurality of planes are obtained in a single scan in significantly reduced time. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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