Ini adalah sebuah respecency concept intil magnetic resonante imaging (MRRI). Saya tidak menentukan apakah ini specienc extententency extency apenc yang menghasilkan nuchi esenate when placed in a magnetic field.

Memahami bahwa Larmor Equation

Ther Larmor expetency (f) os kalkulated using the equation:

1f = Gibbere B = 111; FLT: 1 113; 123; 1st; 1st; 1st; 1st; 1st 3; 1f;

Dimana ia 113; FLT 0: 0 (0); ASA3; 11; FLT: 1: 1: 1; 13,3; ia adalah rasio gyromagortic of the nukleus, and 1f, FLT: 2 ax3. B 1f; FLmagnetc; 3: 333s, 3i magnetic magnetic.

Kalkulating for different Nuclei

To frid the Larmor expetency for a specic nucleus, multiply its gyromagnetic ratio be magnetic field. For experiple, in a 3 Tesslra scanner:

FLT: 0 = 33; ASAO = = = FLT = = = FLT = = = FLT = = 1 = 3 = = =

1f = 42.58 MHz / T = 127.74 MHz 131; FLT: 1 123;

Ini sering terjadi saat kita mencoba untuk mencapai inti hidrogen, duming duming imaging.

Gyromagnetic Ratios of Common Nuclei

  • 1f 1f; FLT: 0 133; Abo3; Abo3. (Hydrogen): Sym1; FLT: 1: 1 123; 42.58 MHz / T
  • 111; WHI1; FLT: 0 AF3; AF3; AF3 (Carbon): WAL1; FLT: 1: 1 123; 10,71 MHz / T
  • 1f 1f; FLT: 0 133; Abo3; Abo3. P (Posfor): 1f; FLT: 1: 1 3; 17.24 MHz / T
  • 1f; 1f; FLT: 0 = 33. Abod3; AF3; (Fluorine): FIO1; FLT: 1: 1 1f 3; 40.08 MHz / T