"Black boundary artifact has several other synonyms, including chemical shift artifact of the 2nd kind, phase cancellation artifact, edging artifact, and black line artifact."
"Black boundary artifact has several other synonyms, including chemical shift artifact of the 2nd kind, phase cancellation artifact, edging artifact, and black line artifact."
"Black boundary artifact has several other synonyms, including chemical shift artifact of the 2nd kind, phase cancellation artifact, edging artifact, and black line artifact."
"Black boundary artifact has several other synonyms, including chemical shift artifact of the 2nd kind, phase cancellation artifact, edging artifact, and black line artifact."
"Black boundary artifact has several other synonyms, including chemical shift artifact of the 2nd kind, phase cancellation artifact, edging artifact, and black line artifact."
"Black boundary artifact has several other synonyms, including chemical shift artifact of the 2nd kind, phase cancellation artifact, edging artifact, and black line artifact."
Expected headings
"Remedy"
"Applications"
"This artifact occurs in gradient echo (GE) sequences as a result of selecting an echo time (TE) in which the fat and water spins (located in the same voxel at an interface) are out of phase, cancelling each other. At 1.5 T, the 3.5 ppm difference in frequency between water and saturated fat results in cancellation of spins at 4.5 ms multiples, starting at about 2.3 ms; for example at 6.8 ms, 11.3 ms, and 15.9 ms. This artifact does not occur with spin echo (SE) sequences as the spins are rephased by the 180o refocusing gradient."
"This artifact occurs in gradient echo (GE) sequences as a result of selecting an echo time (TE) in which the fat and water spins (located in the same voxel at an interface) are out of phase, cancelling each other. At 1.5 T, the 3.5 ppm difference in frequency between water and saturated fat results in cancellation of spins at 4.5 ms multiples, starting at about 2.3 ms; for example at 6.8 ms, 11.3 ms, and 15.9 ms. This artifact does not occur with spin echo (SE) sequences as the spins are rephased by the 180o refocusing gradient."