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quiescent-interval single shot

Russian translation: МРА с одним импульсом возбуждения и с интервалом выдержки (покоя)

13:54 Jan 24, 2020
English to Russian translations [PRO]
Medical - Medical: Instruments
English term or phrase: quiescent-interval single shot
Quiescent-interval single-shot MR angiography acquires data using a modified electrocardiographic (ECG)-triggered, fat suppressed, two-dimensional, balanced steady-state, free precession pulse sequence incorporating slice-selective saturation and a quiescent interval for maximal enhancement of inflowing blood.
Roman Shchadnov
Russian Federation
Local time: 10:35
Russian translation:МРА с одним импульсом возбуждения и с интервалом выдержки (покоя)
Explanation:
https://siemens-healthineers.kz/userfiles/81b86f87d0b72646aa...
Здесь используется насыщение
в плане и РЧ-импульсы с TD ≈100 мс после
R-волны, позволяющие отслеживать
насыщение венозной крови; эти импульсы
подавляют фоновый и венозный сигнал.
После заданного интервала покоя (QI),
равного 228 мс, в ходе которого
в выбранный срез притекает ненасыщенная
артериальная кровь, применяют
РЧ-импульс для подавления сигнала
от жировой ткани, и затем считывают
однокадровую последовательность TrueFISP.
http://www.studmedlib.ru/ru/doc/ISBN9785970407424-0002/-esf2...
последовательности с единственным возбуждающим импульсом и полу-Фурье восстановлением (Half-Fourier Acquisition Single-Shot - HASTE,
https://patents.google.com/patent/US20120293172
QISS applies a spatially selective pre-saturation pulse directly on the image slice of interest. The effect of the on-slice saturation is to immediately generate background suppression in the slice of interest. During a “quiescent interval” (QI) fresh non-saturated blood is allowed to flow into the slice of interest. The QI typically is chosen to be approximately 200-300 ms, i.e., long enough to allow sufficient in-flow of fresh blood, but short enough to prevent substantial T1 NMR recovery of the previously saturated background tissue. After the QI, the magnetization of fresh in-flow blood is detected using conventional MRI pulse sequence(s), e.g., a 2D readout such as SSFP (steady-state free precession). To save scan time, the readout is typically performed in a “single shot”. As will be appreciated, during each “single shot,” one or more different magnitudes of phase encoding are employed so as to acquire data during that shot for a corresponding part of k-space.
Selected response from:

hawkwind
Russian Federation
Local time: 17:35
Grading comment
4 KudoZ points were awarded for this answer



Summary of answers provided
4МРА с одним импульсом возбуждения и с интервалом выдержки (покоя)
hawkwind


Discussion entries: 1





  

Answers


11 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
МРА с одним импульсом возбуждения и с интервалом выдержки (покоя)


Explanation:
https://siemens-healthineers.kz/userfiles/81b86f87d0b72646aa...
Здесь используется насыщение
в плане и РЧ-импульсы с TD ≈100 мс после
R-волны, позволяющие отслеживать
насыщение венозной крови; эти импульсы
подавляют фоновый и венозный сигнал.
После заданного интервала покоя (QI),
равного 228 мс, в ходе которого
в выбранный срез притекает ненасыщенная
артериальная кровь, применяют
РЧ-импульс для подавления сигнала
от жировой ткани, и затем считывают
однокадровую последовательность TrueFISP.
http://www.studmedlib.ru/ru/doc/ISBN9785970407424-0002/-esf2...
последовательности с единственным возбуждающим импульсом и полу-Фурье восстановлением (Half-Fourier Acquisition Single-Shot - HASTE,
https://patents.google.com/patent/US20120293172
QISS applies a spatially selective pre-saturation pulse directly on the image slice of interest. The effect of the on-slice saturation is to immediately generate background suppression in the slice of interest. During a “quiescent interval” (QI) fresh non-saturated blood is allowed to flow into the slice of interest. The QI typically is chosen to be approximately 200-300 ms, i.e., long enough to allow sufficient in-flow of fresh blood, but short enough to prevent substantial T1 NMR recovery of the previously saturated background tissue. After the QI, the magnetization of fresh in-flow blood is detected using conventional MRI pulse sequence(s), e.g., a 2D readout such as SSFP (steady-state free precession). To save scan time, the readout is typically performed in a “single shot”. As will be appreciated, during each “single shot,” one or more different magnitudes of phase encoding are employed so as to acquire data during that shot for a corresponding part of k-space.

hawkwind
Russian Federation
Local time: 17:35
Specializes in field
Native speaker of: Native in RussianRussian
PRO pts in category: 1928
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