甲状腺<sup>99m</sup>TcO<sub>4</sub><sup>-</sup>显像中下列哪种情况不呈现"冷结节"()
男,68岁,全身多处疼痛3个月。行<sup>99</sup>Tc<sup>m</sup>-MDP骨显像如图,可能的诊断是()<img src='https://img2.soutiyun.com/shangxueba/ask/18558001-18561000/18559158/2014052811381278.jpg' />
有关<sup>201</sup>Tl/<sup>99m</sup>TcO<sub>4</sub><sup>-</sup>显像减影法的描述错误的是()
反应A+B→3D,正、逆反应的活化能分别为n kJ·mol<sup>-1</sup>和m kJ·mol<sup>-1</sup>,则反应的<img src='https://img2.soutiyun.com/latex/latex.action' />为( )kJ·mol<sup>-1</sup>。
患者女性,28岁,发现右颈部结节2周。查体:右叶甲状腺下极可触及一约1.5cm×2.0cm结节,质地中等,活动,无压痛。血清甲状腺激素水平正常,<sup>99m</sup>TcO<sub>4</sub><sup>-</sup>甲状腺静态显像示右叶甲状腺下极单发"冷"结节。若采用核医学检查方法鉴别结节性质,其方法是()
男性,8岁,既往有多次抽搐病史,行<sup>99</sup>Tc<sup>m</sup>-ECD脑显像(图1),6天后复查(图2),诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19026001-19029000/19026093/2015082510342069547.jpg' />
一患者的<sup>99</sup>Tc<sup>m</sup>-DTPA肾动态显像如图,正确的诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19041001-19044000/19041376/2015082415435166619.jpg' />
男性,53岁,反复胸闷10年。查体:心界扩大。行<sup>99</sup>Tc<sup>m</sup>-MIBI静息心肌灌注显像如图,可能的诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19068001-19071000/19070335/2015082509260126049.jpg' />
10岁女童,左侧下肢疼痛1周,行<sup>99</sup>Tc<sup>m</sup>-MDP全身骨显像如图,对此诊断正确的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19125001-19128000/19127191/2015082409241243878.jpg' />
男,56岁,行<sup>99</sup>Tc<sup>m</sup>-MDP双手骨显像如图,X线阴性,RF阴性,ESR、CRP稍增高,UA408μmol/L,最可能的诊断是()<img src='https://img2.soutiyun.com/shangxueba/ask/18570001-18573000/18570391/2014052810562810853.jpg' />
21岁男,既往有丝虫病史,行<sup>99</sup>Tc<sup>m</sup>-DX显像如图,正确的诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19068001-19071000/19070140/2015082508475621782.jpg' />
男,74岁,突发头疼、意识丧失7小时,行<sup>99</sup>Tc<sup>m</sup>-HMPAO脑血流断层显像如图,最准确地诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19029001-19032000/19029717/2015082510215595807.jpg' />
乳腺癌患者经手术后出现了患侧上肢肿胀,进行<sup>99m</sup>Tc-植酸钠上肢淋巴显像后如图42所示:<img src='https://img2.soutiyun.com/shangxueba/ask/18867001-18870000/18867894/201508271802434251.jpg' />请问导致这一现象的原因可能是()。
某井深3000m,使用<img src='https://img2.soutiyun.com/shangxueba/ask/17688001-17691000/17690721/2015012717184537495.png' />in(Φ247mm)钻头,计算井眼容积为()m<sup>3</sup>。
患者女性,25岁,发现左颈部结节一周。查体:左叶甲状腺下极可触及一约2cm×2.5cm结节,质地中等,活动,无压痛。血清甲状腺激素水平正常,<sup>99m</sup>TcO甲状腺静态显像示左叶甲状腺下极一"凉"结节。<sup>99m</sup>Tc-MIBI血流灌注显像示结节部位血流较丰富,20分钟早期相及1小时延迟相结节部位均有明显放射性滞留,上述征象提示最可能的诊断是()
女,43岁,左下肢肿胀。行<sup>99</sup>Tc<sup>m</sup>-MAA双下肢深静脉显像如图,可能的诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19068001-19071000/19070040/2015082417485583117.jpg' />
5岁男孩,左肾盂成形术后1年,行<sup>99</sup>Tc<sup>m</sup>-DTPA肾动态显像,功能相如图,对此最可能的诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19068001-19071000/19069686/2015082415252349981.jpg' />
一女性患者的<sup>99</sup>Tc<sup>m</sup>-DTPA肾动态显像如图,对此影像可能的诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19062001-19065000/19063986/2015082415431914734.jpg' />
一患者反复发作头痛半年,行<sup>99</sup>Tc<sup>m</sup>-DTPA脑池显像3、6、24h图像如图及脑CT(图),诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003216/201508251012071681.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003216/2015082510121522462.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003216/2015082510121893615.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003216/2015082510122313742.jpg' />
一颅脑外伤患者,颅内压增高,行<sup>99</sup>Tc<sup>m</sup>-DTPA脑池显像,3h、6h、24h图像如图,诊断是()。<img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003199/201508251009228728.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003199/2015082510092844891.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/19002001-19005000/19003199/2015082510093323967.jpg' />
17岁男孩,突发黑便3天,行<sup>99</sup>Tc<sup>m</sup>O<sub>3</sub>腹部显像如图,正确的诊断是()<img src='https://img2.soutiyun.com/shangxueba/ask/17484001-17487000/17485647/2014052214184040311.jpg' />
一患者静息<sup>99</sup>Tc<sup>m</sup>-MIBI心肌灌注显像如图,诊断是()<img src='https://img2.soutiyun.com/shangxueba/ask/17532001-17535000/17533224/2014051909580590210.jpg' />
患者女性,36岁,右颈部结节一周。无畏寒、发热,无咳嗽、咳痰,饮食可。否认结核病史。PE:右颈部可触及一约1.5cm×2cm的结节,质地中等,无压痛,随吞咽动作上下活动。血清FT<sub>4</sub>、FT<sub>3</sub>、TSH、TGAb及TMAb均正常。<sup>99m</sup>TcO<sub>4</sub><sup>-</sup>甲状腺静态显像示右叶甲状腺可见一“冷”结节。
设n阶矩阵A满足A<sup>m</sup>=0,m是正整数,试证E-A可逆,且<img src='https://img2.soutiyun.com/ask/2020-11-26/975228984878283.png' />