optic-nerve
发表于 2025-3-26 21:41:45
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名字的误用
发表于 2025-3-27 01:17:49
Introduction and History of Stereotactic Body Radiation Therapy (SBRT)emporal distribution using a high precision technique. The clinical experience from intracranial SRS, together with the technical developments in conventional RT, initiated the development of Stereotactic Body Radiation Therapy (SBRT) for extracranial tumors characterized by a very high dose per fra
Increment
发表于 2025-3-27 08:04:27
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cumber
发表于 2025-3-27 11:52:55
Physics of SBRTd to a tumor with the high dose of approximately 10 Gy. The energy of X-rays is provided for the delivery dose of a tumor by physical interactions of photons with matter, and so the photoelectric effect, Compton scattering, and pair production are important interactions for an SBRT, in which the ene
FRAUD
发表于 2025-3-27 15:54:44
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象形文字
发表于 2025-3-27 17:50:59
Patient Immobilization, IGRT, Respiratory Motion Management target and reduce the dose to normal organs surrounding the target by irradiating beams with steep dose gradients from multiple directions. Since the treatment time in SBRT is longer than in conventional therapy, immobilization devices that can hold the patient in a stable position for a long perio
Pelvic-Floor
发表于 2025-3-28 00:15:37
Dose Calculation Algorithmrrounding normal tissues in a few fractions. This technique generally uses a small irradiation field size for treatment planning and dose delivery. However, small fields can cause problems in dosimetry, such as lateral electron disequilibrium (LED) . The effect is the leading cause of inaccuracie
Eclampsia
发表于 2025-3-28 03:10:35
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Deceit
发表于 2025-3-28 09:00:07
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Obloquy
发表于 2025-3-28 10:40:21
Lung: Centralmmerman et al. defined it as “a tumor within 2 cm of the proximal bronchial tree (PBT).” They performed a phase II clinical trial of stereotactic body radiation therapy (SBRT) for stage I non-small cell lung cancer (NSCLC) (Stage IA: 60 Gy/3 Fr; Stage IB: 66 Gy/3 Fr), and observed a high frequen