目的探讨^(131)I治疗对分化型甲状腺癌患者术后血清全段甲状旁腺激素(iPTH)、胰岛素样生长因子1(IGF-1)水平的影响。方法回顾性分析河南科技大学第一附属医院2020年1月至2022年9月收治的73例分化型甲状腺癌患者,均接受甲状腺全切除并于...目的探讨^(131)I治疗对分化型甲状腺癌患者术后血清全段甲状旁腺激素(iPTH)、胰岛素样生长因子1(IGF-1)水平的影响。方法回顾性分析河南科技大学第一附属医院2020年1月至2022年9月收治的73例分化型甲状腺癌患者,均接受甲状腺全切除并于术后2个月采用^(131)I治疗,随访1个月根据治疗情况将患者分为有效组(51例)和无效组(22例)。比较两组患者治疗前及治疗7 d iPTH和IGF-1水平,以及有效组治疗后各时间点血清iPTH、IGF-1水平。结果两组患者治疗后7 d血清iPTH、IGF-1水平均低于治疗前,且有效组低于无效组(P<0.05);有效组治疗后不同时间点血清iPTH、IGF-1水平差异有统计学意义(P<0.05)。结论分化型甲状腺癌患者^(131)I治疗后血清iPTH、IGF-1水平变化可用于判断甲状旁腺功能恢复情况,血清iPTH还可预示术后低钙血症的发生。展开更多
Boron neutron capture therapy(BNCT)is recognized as a precise binary targeted radiotherapy technique that effectively eliminates tumors through the^(10)B(n,α)^(7)Li nuclear reaction.Among various neutron sources,acce...Boron neutron capture therapy(BNCT)is recognized as a precise binary targeted radiotherapy technique that effectively eliminates tumors through the^(10)B(n,α)^(7)Li nuclear reaction.Among various neutron sources,accelerator-based sources have emerged as particularly promising for BNCT applications.The^(7)Li(p,n)^(7)Be reaction is highly regarded as a potential neutron source for BNCT,owing to its low threshold energy for the reaction,significant neutron yield,appropriate average neutron energy,and additional benefits.This study utilized Monte Carlo simulations to model the physical interactions within a lithium target subjected to proton bombardment,including neutron moderation by an MgF_(2)moderator and subsequent BNCT dose analysis using a Snyder head phantom.The study focused on calculating the yields of epithermal neutrons for various incident proton energies,finding an optimal energy at 2.7 MeV.Furthermore,the Snyder head phantom was employed in dose simulations to validate the effectiveness of this specific incident energy when utilizing a^(7)Li(p,n)^(7)Be neutron source for BNCT purposes.展开更多
Background 131Ⅰ therapy is recognized as the simplest, safest, least expensive, and most effective treatment, and accepted by more and more patients. However its curative effect is influenced by many factors, therefo...Background 131Ⅰ therapy is recognized as the simplest, safest, least expensive, and most effective treatment, and accepted by more and more patients. However its curative effect is influenced by many factors, therefore there are some difficulties for doctors to establish individual treatment strategy. The aims of this study were to determine the incidence of early and late hypothyroidism after 131Ⅰ treatment for Graves＇ disease （GD） and to compare their correlation, to observe and analyze the influential factors and to understand the predictabilities of them.Methods Five hundred GD patients （144 males, 356 females; age （41.2±12.3） years） received 131Ⅰ treatment for the first time. The therapeutic procedure was carried out as the following： undergoing 131Ⅰ uptake test to obtain maximum of thyroid uptake value and effective half-life （EHL） time; estimating the thyroid＇s weight by ultrasonography; determination of thyroid hormones and correlative antibodies; pre-therapy physical examination; thyroid imaging; calculating 131Ⅰtherapeutic dosage; per os uptake of the determined 131Ⅰ dosage; follow-up appraisal of curative effect. The observing parameters included age, gender, thyroid weight, GD duration, condition of onset, state of disease, course of treatment, EHL time, maximum of thyroid uptake value, 131Ⅰ dosage and titer of correlative antibodies. We sorted out the data and used both univariate and multivariate analysis to evaluate them statistically.Results The incidence rates of early and late hypothyroidism were 33.2% and 6.6% respectively after 131Ⅰ treatment and approximately 22.2% cases of late hypothyroidism developed from early hypothyroidism. The influential factors of early hypothyroidism included course of GD, the highest thyroid uptake ratio of 131Ⅰ, EHL time and thyroid microsome antibody （TMAb）, etc. A multivariate analysis on late hypothyroidism showed that female patients, with recurrence after anti-thyroid drug treatment and higher thyroid weight, had lower possibility of late hypothyroidism after 131Ⅰ therapy.Conclusions The incidence of early hypothyroidism is higher than that of late hypothyroidism. The highest thyroid uptake ratio of 131Ⅰ, EHL and TMAb will increase the possibility of early hypothyroidism, while GD course is the protective factor. Higher 131Ⅰ dosage, longer EHL and higher TMAb titer will also increase the possibility of late hypothyroidism. The multi-perspective and multi-factor analysis has the benefit to establish individualized treatment strategy.展开更多
目的:探讨24 h摄碘率(24 h RAIU)对^(131)I治疗甲状腺功能亢进(简称甲亢)的效果及体内残留活度的影响。方法:选取2017年6月-2022年6月白银市第一人民医院收治的50例Graves甲亢患者作为研究对象,根据患者治疗前24 h RAIU的不同分为Ⅰ组(2...目的:探讨24 h摄碘率(24 h RAIU)对^(131)I治疗甲状腺功能亢进(简称甲亢)的效果及体内残留活度的影响。方法:选取2017年6月-2022年6月白银市第一人民医院收治的50例Graves甲亢患者作为研究对象,根据患者治疗前24 h RAIU的不同分为Ⅰ组(24 h RAIU<50%)、Ⅱ组(50%≤24 h RAIU≤80%)、Ⅲ组(24 h RAIU>80%)。患者均采用^(131)I治疗,比较三组治疗效果及治疗后72 h体内残留^(131)I活度。结果:Ⅰ组治疗总有效率最高,其次为Ⅱ组,Ⅲ组最低,差异有统计学意义(P<0.05)。Ⅰ组治疗后72 h体内残留^(131)I活度最低,其次为Ⅱ组,Ⅲ组最高,差异有统计学意义(P<0.05)。结论:24 h RAIU可影响甲亢患者^(131)I治疗效果和72 h体内残留^(131)I活度,24 h RAIU越大,治疗有效率越低,72 h体内残留^(131)I活度越高。展开更多
文摘目的探讨^(131)I治疗对分化型甲状腺癌患者术后血清全段甲状旁腺激素(iPTH)、胰岛素样生长因子1(IGF-1)水平的影响。方法回顾性分析河南科技大学第一附属医院2020年1月至2022年9月收治的73例分化型甲状腺癌患者,均接受甲状腺全切除并于术后2个月采用^(131)I治疗,随访1个月根据治疗情况将患者分为有效组(51例)和无效组(22例)。比较两组患者治疗前及治疗7 d iPTH和IGF-1水平,以及有效组治疗后各时间点血清iPTH、IGF-1水平。结果两组患者治疗后7 d血清iPTH、IGF-1水平均低于治疗前,且有效组低于无效组(P<0.05);有效组治疗后不同时间点血清iPTH、IGF-1水平差异有统计学意义(P<0.05)。结论分化型甲状腺癌患者^(131)I治疗后血清iPTH、IGF-1水平变化可用于判断甲状旁腺功能恢复情况,血清iPTH还可预示术后低钙血症的发生。
文摘Boron neutron capture therapy(BNCT)is recognized as a precise binary targeted radiotherapy technique that effectively eliminates tumors through the^(10)B(n,α)^(7)Li nuclear reaction.Among various neutron sources,accelerator-based sources have emerged as particularly promising for BNCT applications.The^(7)Li(p,n)^(7)Be reaction is highly regarded as a potential neutron source for BNCT,owing to its low threshold energy for the reaction,significant neutron yield,appropriate average neutron energy,and additional benefits.This study utilized Monte Carlo simulations to model the physical interactions within a lithium target subjected to proton bombardment,including neutron moderation by an MgF_(2)moderator and subsequent BNCT dose analysis using a Snyder head phantom.The study focused on calculating the yields of epithermal neutrons for various incident proton energies,finding an optimal energy at 2.7 MeV.Furthermore,the Snyder head phantom was employed in dose simulations to validate the effectiveness of this specific incident energy when utilizing a^(7)Li(p,n)^(7)Be neutron source for BNCT purposes.
文摘Background 131Ⅰ therapy is recognized as the simplest, safest, least expensive, and most effective treatment, and accepted by more and more patients. However its curative effect is influenced by many factors, therefore there are some difficulties for doctors to establish individual treatment strategy. The aims of this study were to determine the incidence of early and late hypothyroidism after 131Ⅰ treatment for Graves＇ disease （GD） and to compare their correlation, to observe and analyze the influential factors and to understand the predictabilities of them.Methods Five hundred GD patients （144 males, 356 females; age （41.2±12.3） years） received 131Ⅰ treatment for the first time. The therapeutic procedure was carried out as the following： undergoing 131Ⅰ uptake test to obtain maximum of thyroid uptake value and effective half-life （EHL） time; estimating the thyroid＇s weight by ultrasonography; determination of thyroid hormones and correlative antibodies; pre-therapy physical examination; thyroid imaging; calculating 131Ⅰtherapeutic dosage; per os uptake of the determined 131Ⅰ dosage; follow-up appraisal of curative effect. The observing parameters included age, gender, thyroid weight, GD duration, condition of onset, state of disease, course of treatment, EHL time, maximum of thyroid uptake value, 131Ⅰ dosage and titer of correlative antibodies. We sorted out the data and used both univariate and multivariate analysis to evaluate them statistically.Results The incidence rates of early and late hypothyroidism were 33.2% and 6.6% respectively after 131Ⅰ treatment and approximately 22.2% cases of late hypothyroidism developed from early hypothyroidism. The influential factors of early hypothyroidism included course of GD, the highest thyroid uptake ratio of 131Ⅰ, EHL time and thyroid microsome antibody （TMAb）, etc. A multivariate analysis on late hypothyroidism showed that female patients, with recurrence after anti-thyroid drug treatment and higher thyroid weight, had lower possibility of late hypothyroidism after 131Ⅰ therapy.Conclusions The incidence of early hypothyroidism is higher than that of late hypothyroidism. The highest thyroid uptake ratio of 131Ⅰ, EHL and TMAb will increase the possibility of early hypothyroidism, while GD course is the protective factor. Higher 131Ⅰ dosage, longer EHL and higher TMAb titer will also increase the possibility of late hypothyroidism. The multi-perspective and multi-factor analysis has the benefit to establish individualized treatment strategy.
文摘目的:探讨24 h摄碘率(24 h RAIU)对^(131)I治疗甲状腺功能亢进(简称甲亢)的效果及体内残留活度的影响。方法:选取2017年6月-2022年6月白银市第一人民医院收治的50例Graves甲亢患者作为研究对象,根据患者治疗前24 h RAIU的不同分为Ⅰ组(24 h RAIU<50%)、Ⅱ组(50%≤24 h RAIU≤80%)、Ⅲ组(24 h RAIU>80%)。患者均采用^(131)I治疗,比较三组治疗效果及治疗后72 h体内残留^(131)I活度。结果:Ⅰ组治疗总有效率最高,其次为Ⅱ组,Ⅲ组最低,差异有统计学意义(P<0.05)。Ⅰ组治疗后72 h体内残留^(131)I活度最低,其次为Ⅱ组,Ⅲ组最高,差异有统计学意义(P<0.05)。结论:24 h RAIU可影响甲亢患者^(131)I治疗效果和72 h体内残留^(131)I活度,24 h RAIU越大,治疗有效率越低,72 h体内残留^(131)I活度越高。
