Mri physics armrit test Study guides, Class notes & Summaries

Signal - Answer Current induced iby receiver coil. Also comes from the procession of protons in the patient. Chemical pre saturation - Answer Selectively apply 90 degree pulse at frequency of tissue to be saturated. Moves fat or HBO 90 degrees. 2nd puse wider bandwidth moves both fat and water 90 degrees. One will be saturated so will not be read. Saturating out normal anatomy, pathology is often seen more clearly. NEX number of excitations - Answer is the number of times each line is fill...

The component Mxy is most associated with: - ANSWERTransverse to Bo; T2 relaxation; Transverse magnetization The resonance frequency of any substance in a magnetic field can be calculated by employing the: - ANSWERLarmor equation Once the patient's area of interest is placed in the main magnetic field of the MRI system, the hydrogen protons will: - ANSWERPrecess parallel to Bo The longitudinal component of the NMV is designated: - ANSWERMz Which type of MRI magnet requires no electr...

The T1 process is also known as: - Answer Spin Lattice Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - Answer Gradient coils The component Mxy is most associated with: - Answer Transverse to Bo; T2 relaxation; Transverse magnetization The resonance frequency of any substance in a magnetic field can be calculated by employing the: - Answer Larmor equation Once the patient's area of interest is placed in the main m...

Signal-Current induced iby receiver coil. Also comes from the procession of protons in the patient. Chemical pre saturation-Selectively apply 90 degree pulse at frequency of tissue to be saturated. Moves fat or HBO 90 degrees. 2nd puse wider bandwidth moves both fat and water 90 degrees. One will be saturated so will not be read. Saturating out normal anatomy, pathology is often seen more clearly. NEX number of excitations-is the number of times each line is filled with the data in K space,...

The T1 process is also known as: - Answer-Spin Lattice Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - Answer-Gradient coils The component Mxy is most associated with: - Answer-Transverse to Bo; T2 relaxation; Transverse magnetization The resonance frequency of any substance in a magnetic field can be calculated by employing the: - Answer-Larmor equation Once the patient's area of interest is placed in the main mag...