核医学ECT显像是安全、无创伤的诊断方法，既能显示脏器解剖形态，又能提供功能性变化，被称为“功能显像”，能更早期诊断疾病、判断疾病的性质及发展程度。天津市胸科医院核医学科旨在为心血管疾病、呼吸疾病、肾脏疾病、甲状腺疾病患者提供更加全面、准确、早期诊断依据，帮助临床医生制定最佳诊疗方案。我院最新引进SIEMENS公司生产的SPECT/CT Symbia T6型设备，可同机、同时完成核医学SPECT影像检查和放射学CT检查，并将两种影像进行图像融合，能最大限度地发挥核医学功能显像和放射学解剖显像的优势，使两种影像诊断信息互补。

　　结合我院的诊疗特色，预计开展以下检查及治疗项目

　　（一）核心脏病学 

　　1.心肌灌注断层显像：(1)诊断方面：结合静息、负荷心肌灌注显像确定心肌缺血，明确心肌缺血的范围和程度。(2)存活心肌鉴定：对于存在静息心肌显像时灌注受损患者，予以硝酸酯+多巴酚丁胺介入心肌显像，评价病变区域存活心肌，指导血运重建治疗。

　　2.门控心肌灌注显像：在了解心肌血流灌注的基础上，进一步(1)分别测定静息、负荷状态下左室心腔大小和左心室功能。(2)量化分析左心室各节段的室壁运动和室壁增厚率。(3)通过相位分析精确评价左心室收缩的机械同步性。

　　(二)呼吸系统核医学

　　1.肺灌注/通气显像(^99mTc-MAA、^99mTc-DTPA)：主要用于(1)肺血栓栓塞的诊断及疗效评价。(2)预测肺减容术后患者的肺功能情况，为手术安全性、可行性提供证据支持。

　　2.放射性核素全身骨显像(^99mTc-MDP)：明确肺癌患者是否骨转移，决定治疗方案；肺癌治疗预后判断。

　　3. ⁸⁹Sr治疗：对于已有肺癌骨转移的患者，进行⁸⁹Sr内放射治疗。

　　(三)肾脏核医学：

　　1.评价肾脏的血流灌注和聚集、清除功能。

　　2.明确分肾的肾小球滤过率。

　　3.明确肾血管性高血压的诊断。

　　(四)内分泌核医学

　　1.了解甲状腺的大小，位置、形态、功能和异位甲状腺；甲状腺炎、甲状腺肿的诊断；甲状腺结节功能状态的判断和良、恶性鉴别；甲状腺内外肿块的鉴别诊断；弥漫性和结节性甲状腺肿的鉴别；异位甲状腺的诊断；测定甲状腺吸碘率，进行Graves病的¹³¹I内放射治疗。

　　2.通过甲状旁腺显像为甲状旁腺疾病诊断提供依据。

Nuclear medicine department

　　Emission computed tomography, abbreviated ECT imaging is a safe, non-invasive diagnostic method and being referred to as "functional imaging" due to its capability which can show both viscera anatomical morphology and functional changes. ECT imaging can provide earlier clues for diagnosis and nature or severity/extent of diseases. The department of nuclear medicine of Tianjin chest hospital aims to offer more comprehensive, definite, accurate and timely messages in support of diagnosis or prognosis for cardiovascular, respiratory, kidney and thyroid diseases in order to facilitate and optimize the therapeutic regimen. Symbia T6 (SIEMENS, Germany) is one of the latest/advanced type of SPECT/CT equipments which can integrate SPECT and CT examination and then produces combined images at the same fusion. So it Can maximize the functions of nuclear medicine imaging and radiology anatomical imaging and amplify the advantages of the two kinds of complementary imaging diagnostic information.

　　The following inspection and treatment programs are expected to carry out on basis of our clinical features.

　　(Ⅰ) Nuclear cardiology

　　1. Myocardial perfusion imaging(MPI)

　　(1) ischemic identification: to confirm myocardial ischemia and evaluate ischemic extent/severity in terms of rest and stress MPI.(2) Discrimination of viable myocardium: the Nitroglyceride combined with Dobutamine intervention trials will be applied to patients with impaired rest MPI to quantify the viable myocardium to guide the further regimen about whether revascularization or pharmacotherapeutics.

　　2. Gated myocardial perfusion imaging(G-MPI)

　　(1)To measure the chamber size and systolic function of left ventricles under rest/stress state.(2)To detect the wall motion and wall thickening rate of left ventricles.(3) Accurately evaluate the mechanical synchrony of left ventricular contraction by phase analysis.

　　(Ⅱ) Respiratory Nuclear Medicine

　　 1. Pulmonary perfusion / ventilation imaging (1)Diagnosis for pulmonary thrombus and the therapeutic evaluation. (2)Foresee the safety, feasibility of lung volume reduction surgery and predict the residual pulmonary function.

　　2.Radionuclide whole body bone imaging: to judge the incidence of bone metastases from lung cancer cohort.

　　3. ⁸⁹Sr therapy: ⁸⁹Sr is used for patients who have bone metastases.

　　(Ⅲ) Kidney Nuclear Medicine

　　1.To evaluate the blood perfusion and gathering, elimination function of kidney.

　　2.To detect the glomerular filtration rate(GFR) of each kidney definitely.

　　3.For diagnose of renal vascular hypertension.

　　(Ⅳ) Endocrine Nuclear Medicine

　　1. thyroid aspects :To recognize the size, location, morphous ,function of thyroid or ectopic thyroid; diagnose thyroiditis and thyrocele; judge the benign or malignant thyroid nodules; antidiastole diffuse or nodular goiter; measure iodine uptake to underlie ¹³¹I internal radiotherapy .

　　2. Provide parathyroid imaging for diagnosis of parathyroid diseases.