探讨将 Root Cause Analysis（RCA）质量管理模式与心理资本理论相结合应用于手术核查团队，对改善沟通中断、提升沟通执行质量与团队协作能力的效果。方法 选取 2025年 1 月至 2025 年12 月某三级医院手术室手术团队成员 80 名，按手术间编号分为对照组与实验组，各 40 名。对照组实施常规手术核查流程；实验组在此基础上实施基于 RCA 的流程诊断与基于心理资本理论的综合沟通能力提升干预。干预结束后，比较两组沟通中断发生率、核查流程执行质量、沟通效率，以及心理资本量表（PCQ-24）和团队协作量表（T-TPQ）得分。结果 实验组沟通中断发生率显著低于对照组（P＜0.05），核查流程执行质量和沟通效率均显著优于对照组（P＜0.001）。实验组 PCQ-24 各维度及总分、T-TPQ 各维度及总分均显著高于对照组（均 P＜0.001）。结论 将 RCA 流程分析与心理资本理论干预相结合，可通过流程规范化与心理动力增强双路径同步改善手术团队沟通质量与协作水平，具有良好的临床应用价值与推广潜力。

To evaluate the effectiveness of an intervention combining Root Cause Analysis (RCA)–based quality management and Psychological Capital (PsyCap) theory in reducing communication interruptions and improving communication quality and teamwork in surgical safety check teams. Methods: Eighty surgical team members from a tertiary hospital (January 2025 - December 2025.) were assigned to a control group or an intervention group according to operating room allocation (40 per group). The control group followed routine surgical safety check procedures, whereas the intervention group additionally received an RCA-guided workflow analysis and a PsyCap-based communication enhancement program. Post-intervention outcomes included communication interruption rate, execution quality and efficiency of safety checks, Psychological Capital Questionnaire (PCQ-24) scores, and TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) scores. Results: The intervention group demonstrated a significantly lower communication interruption rate compared with the control group (P＜0.05). Execution quality and communication efficiency were significantly improved in the intervention group (P＜0.001). PCQ-24 total and subscale scores were significantly higher in the intervention group than in the control group (P＜0.001), as were T-TPQ total and subscale scores (P＜0.001). Conclusion: Integrating RCA-based workflow optimization with PsyCap-oriented psychological and behavioral training can effectively enhance communication quality, reduce interruptions, and strengthen teamwork in surgical safety check teams. The combined model has strong applicability and potential for wider clinical promotion.

目的 比较锝[???Tc]甲氧基异丁基异腈单光子发射计算机断层扫描/计算机断层扫描（???Tc-MIBI SPECT/CT）双时相显像与颈部超声在继发性甲状旁腺功能亢进症（SHPT）患者术前定位中的诊断价值。方法 回顾性纳入2025年5月至2026年4月于黔东南苗族侗族自治州人民医院行两种影像学检查的疑似SHPT患者54例。以手术病理结果为金标准，计算超声与SPECT/CT在区域层面（共216个区域）的敏感性、特异性、准确性，并比较不同解剖区域的病灶检出率。结果 54例中确诊SHPT 45例（83.33%）。超声诊断敏感性、特异性、准确性分别为70.89%（112/158）、86.21%（50/58）、75.00%（162/216）；SPECT/CT分别为92.41%（146/158）、94.83%（55/58）、93.06%（201/216）。SPECT/CT的敏感性和准确性均高于超声（P均<0.001）。SPECT/CT在左上、左下、右上三个区域的检出率均高于超声（P<0.05）。结论 99mTc-MIBI SPECT/CT双时相显像在SHPT术前定位中的敏感性和准确性优于颈部超声，尤其对左上、左下、右上区域病灶检出优势明显，可作为SHPT患者术前定位的重要补充或首选影像学方法。

Objective?To compare the diagnostic value of technetium-99m methoxyisobutylisonitrile single-photon emission computed tomography/computed tomography (99mTc-MIBI SPECT/CT) dual-phase imaging and cervical ultrasound in preoperative localization of secondary hyperparathyroidism (SHPT).?Methods?A total of 54 patients with suspected SHPT who underwent both imaging examinations at Qiandongnan Miao and Dong Autonomous Prefecture People's Hospital from May 2025 to April 2026 were retrospectively enrolled. Using surgical pathology as the gold standard, the sensitivity, specificity, and accuracy of ultrasound and SPECT/CT were calculated at the regional level (216 regions in total), and the detection rates in different anatomical regions were compared.?Results?Among the 54 patients, 45 (83.33%) were confirmed with SHPT. The sensitivity, specificity, and accuracy of ultrasound were 70.89% (112/158), 86.21% (50/58), and 75.00% (162/216), respectively; while those of SPECT/CT were 92.41% (146/158), 94.83% (55/58), and 93.06% (201/216), respectively. The sensitivity and accuracy of SPECT/CT were significantly higher than those of ultrasound (both?P<0.001). The detection rates of SPECT/CT in the upper-left, lower-left, and upper-right regions were significantly higher than those of ultrasound (P<0.05).?Conclusion?99mTc-MIBI SPECT/CT dual-phase imaging demonstrates superior sensitivity and accuracy compared with cervical ultrasound in preoperative localization of SHPT, especially showing significant advantages in detecting lesions in the upper-left, lower-left, and upper-right regions. It can serve as an important supplement or the first-choice imaging modality for preoperative localization in SHPT patients.

探讨将 Root Cause Analysis（RCA）质量管理模式与心理资本理论相结合应用于手术核查团队，对改善沟通中断、提升沟通执行质量与团队协作能力的效果。方法 选取 2025年 1 月至 2025 年12 月某三级医院手术室手术团队成员 80 名，按手术间编号分为对照组与实验组，各 40 名。对照组实施常规手术核查流程；实验组在此基础上实施基于 RCA 的流程诊断与基于心理资本理论的综合沟通能力提升干预。干预结束后，比较两组沟通中断发生率、核查流程执行质量、沟通效率，以及心理资本量表（PCQ-24）和团队协作量表（T-TPQ）得分。结果 实验组沟通中断发生率显著低于对照组（P＜0.05），核查流程执行质量和沟通效率均显著优于对照组（P＜0.001）。实验组 PCQ-24 各维度及总分、T-TPQ 各维度及总分均显著高于对照组（均 P＜0.001）。结论 将 RCA 流程分析与心理资本理论干预相结合，可通过流程规范化与心理动力增强双路径同步改善手术团队沟通质量与协作水平，具有良好的临床应用价值与推广潜力。

To evaluate the effectiveness of an intervention combining Root Cause Analysis (RCA)–based quality management and Psychological Capital (PsyCap) theory in reducing communication interruptions and improving communication quality and teamwork in surgical safety check teams. Methods: Eighty surgical team members from a tertiary hospital (January 2025 - December 2025.) were assigned to a control group or an intervention group according to operating room allocation (40 per group). The control group followed routine surgical safety check procedures, whereas the intervention group additionally received an RCA-guided workflow analysis and a PsyCap-based communication enhancement program. Post-intervention outcomes included communication interruption rate, execution quality and efficiency of safety checks, Psychological Capital Questionnaire (PCQ-24) scores, and TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) scores. Results: The intervention group demonstrated a significantly lower communication interruption rate compared with the control group (P＜0.05). Execution quality and communication efficiency were significantly improved in the intervention group (P＜0.001). PCQ-24 total and subscale scores were significantly higher in the intervention group than in the control group (P＜0.001), as were T-TPQ total and subscale scores (P＜0.001). Conclusion: Integrating RCA-based workflow optimization with PsyCap-oriented psychological and behavioral training can effectively enhance communication quality, reduce interruptions, and strengthen teamwork in surgical safety check teams. The combined model has strong applicability and potential for wider clinical promotion.

目的 比较锝[???Tc]甲氧基异丁基异腈单光子发射计算机断层扫描/计算机断层扫描（???Tc-MIBI SPECT/CT）双时相显像与颈部超声在继发性甲状旁腺功能亢进症（SHPT）患者术前定位中的诊断价值。方法 回顾性纳入2025年5月至2026年4月于黔东南苗族侗族自治州人民医院行两种影像学检查的疑似SHPT患者54例。以手术病理结果为金标准，计算超声与SPECT/CT在区域层面（共216个区域）的敏感性、特异性、准确性，并比较不同解剖区域的病灶检出率。结果 54例中确诊SHPT 45例（83.33%）。超声诊断敏感性、特异性、准确性分别为70.89%（112/158）、86.21%（50/58）、75.00%（162/216）；SPECT/CT分别为92.41%（146/158）、94.83%（55/58）、93.06%（201/216）。SPECT/CT的敏感性和准确性均高于超声（P均<0.001）。SPECT/CT在左上、左下、右上三个区域的检出率均高于超声（P<0.05）。结论 99mTc-MIBI SPECT/CT双时相显像在SHPT术前定位中的敏感性和准确性优于颈部超声，尤其对左上、左下、右上区域病灶检出优势明显，可作为SHPT患者术前定位的重要补充或首选影像学方法。

Objective?To compare the diagnostic value of technetium-99m methoxyisobutylisonitrile single-photon emission computed tomography/computed tomography (99mTc-MIBI SPECT/CT) dual-phase imaging and cervical ultrasound in preoperative localization of secondary hyperparathyroidism (SHPT).?Methods?A total of 54 patients with suspected SHPT who underwent both imaging examinations at Qiandongnan Miao and Dong Autonomous Prefecture People's Hospital from May 2025 to April 2026 were retrospectively enrolled. Using surgical pathology as the gold standard, the sensitivity, specificity, and accuracy of ultrasound and SPECT/CT were calculated at the regional level (216 regions in total), and the detection rates in different anatomical regions were compared.?Results?Among the 54 patients, 45 (83.33%) were confirmed with SHPT. The sensitivity, specificity, and accuracy of ultrasound were 70.89% (112/158), 86.21% (50/58), and 75.00% (162/216), respectively; while those of SPECT/CT were 92.41% (146/158), 94.83% (55/58), and 93.06% (201/216), respectively. The sensitivity and accuracy of SPECT/CT were significantly higher than those of ultrasound (both?P<0.001). The detection rates of SPECT/CT in the upper-left, lower-left, and upper-right regions were significantly higher than those of ultrasound (P<0.05).?Conclusion?99mTc-MIBI SPECT/CT dual-phase imaging demonstrates superior sensitivity and accuracy compared with cervical ultrasound in preoperative localization of SHPT, especially showing significant advantages in detecting lesions in the upper-left, lower-left, and upper-right regions. It can serve as an important supplement or the first-choice imaging modality for preoperative localization in SHPT patients.

目的 探讨将 Root Cause Analysis（RCA）质量管理模式与心理资本理论相结合应用于手术核查团队，对改善沟通中断、提升沟通执行质量与团队协作能力的效果。方法 选取 2025年 1 月至 2025 年12 月某三级医院手术室手术团队成员 80 名，按手术间编号分为对照组与实验组，各 40 名。对照组实施常规手术核查流程；实验组在此基础上实施基于 RCA 的流程诊断与基于心理资本理论的综合沟通能力提升干预。干预结束后，比较两组沟通中断发生率、核查流程执行质量、沟通效率，以及心理资本量表（PCQ-24）和团队协作量表（T-TPQ）得分。结果 实验组沟通中断发生率显著低于对照组（P＜0.05），核查流程执行质量和沟通效率均显著优于对照组（P＜0.001）。实验组 PCQ-24 各维度及总分、T-TPQ 各维度及总分均显著高于对照组（均 P＜0.001）。结论 将 RCA 流程分析与心理资本理论干预相结合，可通过流程规范化与心理动力增强双路径同步改善手术团队沟通质量与协作水平，具有良好的临床应用价值与推广潜力。

To evaluate the effectiveness of an intervention combining Root Cause Analysis (RCA)–based quality management and Psychological Capital (PsyCap) theory in reducing communication interruptions and improving communication quality and teamwork in surgical safety check teams. Methods: Eighty surgical team members from a tertiary hospital (January 2025 - December 2025.) were assigned to a control group or an intervention group according to operating room allocation (40 per group). The control group followed routine surgical safety check procedures, whereas the intervention group additionally received an RCA-guided workflow analysis and a PsyCap-based communication enhancement program. Post-intervention outcomes included communication interruption rate, execution quality and efficiency of safety checks, Psychological Capital Questionnaire (PCQ-24) scores, and TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) scores. Results: The intervention group demonstrated a significantly lower communication interruption rate compared with the control group (P＜0.05). Execution quality and communication efficiency were significantly improved in the intervention group (P＜0.001). PCQ-24 total and subscale scores were significantly higher in the intervention group than in the control group (P＜0.001), as were T-TPQ total and subscale scores (P＜0.001). Conclusion: Integrating RCA-based workflow optimization with PsyCap-oriented psychological and behavioral training can effectively enhance communication quality, reduce interruptions, and strengthen teamwork in surgical safety check teams. The combined model has strong applicability and potential for wider clinical promotion.

探讨将 Root Cause Analysis（RCA）质量管理模式与心理资本理论相结合应用于手术核查团队，对改善沟通中断、提升沟通执行质量与团队协作能力的效果。方法 选取 2025年 1 月至 2025 年12 月某三级医院手术室手术团队成员 80 名，按手术间编号分为对照组与实验组，各 40 名。对照组实施常规手术核查流程；实验组在此基础上实施基于 RCA 的流程诊断与基于心理资本理论的综合沟通能力提升干预。干预结束后，比较两组沟通中断发生率、核查流程执行质量、沟通效率，以及心理资本量表（PCQ-24）和团队协作量表（T-TPQ）得分。结果 实验组沟通中断发生率显著低于对照组（P＜0.05），核查流程执行质量和沟通效率均显著优于对照组（P＜0.001）。实验组 PCQ-24 各维度及总分、T-TPQ 各维度及总分均显著高于对照组（均 P＜0.001）。结论 将 RCA 流程分析与心理资本理论干预相结合，可通过流程规范化与心理动力增强双路径同步改善手术团队沟通质量与协作水平，具有良好的临床应用价值与推广潜力。

To evaluate the effectiveness of an intervention combining Root Cause Analysis (RCA)–based quality management and Psychological Capital (PsyCap) theory in reducing communication interruptions and improving communication quality and teamwork in surgical safety check teams. Methods: Eighty surgical team members from a tertiary hospital (January 2025 - December 2025.) were assigned to a control group or an intervention group according to operating room allocation (40 per group). The control group followed routine surgical safety check procedures, whereas the intervention group additionally received an RCA-guided workflow analysis and a PsyCap-based communication enhancement program. Post-intervention outcomes included communication interruption rate, execution quality and efficiency of safety checks, Psychological Capital Questionnaire (PCQ-24) scores, and TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) scores. Results: The intervention group demonstrated a significantly lower communication interruption rate compared with the control group (P＜0.05). Execution quality and communication efficiency were significantly improved in the intervention group (P＜0.001). PCQ-24 total and subscale scores were significantly higher in the intervention group than in the control group (P＜0.001), as were T-TPQ total and subscale scores (P＜0.001). Conclusion: Integrating RCA-based workflow optimization with PsyCap-oriented psychological and behavioral training can effectively enhance communication quality, reduce interruptions, and strengthen teamwork in surgical safety check teams. The combined model has strong applicability and potential for wider clinical promotion.

探讨将 Root Cause Analysis（RCA）质量管理模式与心理资本理论相结合应用于手术核查团队，对改善沟通中断、提升沟通执行质量与团队协作能力的效果。方法 选取 2025年 1 月至 2025 年12 月某三级医院手术室手术团队成员 80 名，按手术间编号分为对照组与实验组，各 40 名。对照组实施常规手术核查流程；实验组在此基础上实施基于 RCA 的流程诊断与基于心理资本理论的综合沟通能力提升干预。干预结束后，比较两组沟通中断发生率、核查流程执行质量、沟通效率，以及心理资本量表（PCQ-24）和团队协作量表（T-TPQ）得分。结果 实验组沟通中断发生率显著低于对照组（P＜0.05），核查流程执行质量和沟通效率均显著优于对照组（P＜0.001）。实验组 PCQ-24 各维度及总分、T-TPQ 各维度及总分均显著高于对照组（均 P＜0.001）。结论 将 RCA 流程分析与心理资本理论干预相结合，可通过流程规范化与心理动力增强双路径同步改善手术团队沟通质量与协作水平，具有良好的临床应用价值与推广潜力。

To evaluate the effectiveness of an intervention combining Root Cause Analysis (RCA)–based quality management and Psychological Capital (PsyCap) theory in reducing communication interruptions and improving communication quality and teamwork in surgical safety check teams. Methods: Eighty surgical team members from a tertiary hospital (January 2025 - December 2025.) were assigned to a control group or an intervention group according to operating room allocation (40 per group). The control group followed routine surgical safety check procedures, whereas the intervention group additionally received an RCA-guided workflow analysis and a PsyCap-based communication enhancement program. Post-intervention outcomes included communication interruption rate, execution quality and efficiency of safety checks, Psychological Capital Questionnaire (PCQ-24) scores, and TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) scores. Results: The intervention group demonstrated a significantly lower communication interruption rate compared with the control group (P＜0.05). Execution quality and communication efficiency were significantly improved in the intervention group (P＜0.001). PCQ-24 total and subscale scores were significantly higher in the intervention group than in the control group (P＜0.001), as were T-TPQ total and subscale scores (P＜0.001). Conclusion: Integrating RCA-based workflow optimization with PsyCap-oriented psychological and behavioral training can effectively enhance communication quality, reduce interruptions, and strengthen teamwork in surgical safety check teams. The combined model has strong applicability and potential for wider clinical promotion.

探讨将 Root Cause Analysis（RCA）质量管理模式与心理资本理论相结合应用于手术核查团队，对改善沟通中断、提升沟通执行质量与团队协作能力的效果。方法 选取 2025年 1 月至 2025 年12 月某三级医院手术室手术团队成员 80 名，按手术间编号分为对照组与实验组，各 40 名。对照组实施常规手术核查流程；实验组在此基础上实施基于 RCA 的流程诊断与基于心理资本理论的综合沟通能力提升干预。干预结束后，比较两组沟通中断发生率、核查流程执行质量、沟通效率，以及心理资本量表（PCQ-24）和团队协作量表（T-TPQ）得分。结果 实验组沟通中断发生率显著低于对照组（P＜0.05），核查流程执行质量和沟通效率均显著优于对照组（P＜0.001）。实验组 PCQ-24 各维度及总分、T-TPQ 各维度及总分均显著高于对照组（均 P＜0.001）。结论 将 RCA 流程分析与心理资本理论干预相结合，可通过流程规范化与心理动力增强双路径同步改善手术团队沟通质量与协作水平，具有良好的临床应用价值与推广潜力。

To evaluate the effectiveness of an intervention combining Root Cause Analysis (RCA)–based quality management and Psychological Capital (PsyCap) theory in reducing communication interruptions and improving communication quality and teamwork in surgical safety check teams. Methods: Eighty surgical team members from a tertiary hospital (January 2025 - December 2025.) were assigned to a control group or an intervention group according to operating room allocation (40 per group). The control group followed routine surgical safety check procedures, whereas the intervention group additionally received an RCA-guided workflow analysis and a PsyCap-based communication enhancement program. Post-intervention outcomes included communication interruption rate, execution quality and efficiency of safety checks, Psychological Capital Questionnaire (PCQ-24) scores, and TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) scores. Results: The intervention group demonstrated a significantly lower communication interruption rate compared with the control group (P＜0.05). Execution quality and communication efficiency were significantly improved in the intervention group (P＜0.001). PCQ-24 total and subscale scores were significantly higher in the intervention group than in the control group (P＜0.001), as were T-TPQ total and subscale scores (P＜0.001). Conclusion: Integrating RCA-based workflow optimization with PsyCap-oriented psychological and behavioral training can effectively enhance communication quality, reduce interruptions, and strengthen teamwork in surgical safety check teams. The combined model has strong applicability and potential for wider clinical promotion.

目的 比较锝[???Tc]甲氧基异丁基异腈单光子发射计算机断层扫描/计算机断层扫描（???Tc-MIBI SPECT/CT）双时相显像与颈部超声在继发性甲状旁腺功能亢进症（SHPT）患者术前定位中的诊断价值。方法 回顾性纳入2025年5月至2026年4月于黔东南苗族侗族自治州人民医院行两种影像学检查的疑似SHPT患者54例。以手术病理结果为金标准，计算超声与SPECT/CT在区域层面（共216个区域）的敏感性、特异性、准确性，并比较不同解剖区域的病灶检出率。结果 54例中确诊SHPT 45例（83.33%）。超声诊断敏感性、特异性、准确性分别为70.89%（112/158）、86.21%（50/58）、75.00%（162/216）；SPECT/CT分别为92.41%（146/158）、94.83%（55/58）、93.06%（201/216）。SPECT/CT的敏感性和准确性均高于超声（P均<0.001）。SPECT/CT在左上、左下、右上三个区域的检出率均高于超声（P<0.05）。结论 99mTc-MIBI SPECT/CT双时相显像在SHPT术前定位中的敏感性和准确性优于颈部超声，尤其对左上、左下、右上区域病灶检出优势明显，可作为SHPT患者术前定位的重要补充或首选影像学方法。

Objective?To compare the diagnostic value of technetium-99m methoxyisobutylisonitrile single-photon emission computed tomography/computed tomography (99mTc-MIBI SPECT/CT) dual-phase imaging and cervical ultrasound in preoperative localization of secondary hyperparathyroidism (SHPT).?Methods?A total of 54 patients with suspected SHPT who underwent both imaging examinations at Qiandongnan Miao and Dong Autonomous Prefecture People's Hospital from May 2025 to April 2026 were retrospectively enrolled. Using surgical pathology as the gold standard, the sensitivity, specificity, and accuracy of ultrasound and SPECT/CT were calculated at the regional level (216 regions in total), and the detection rates in different anatomical regions were compared.?Results?Among the 54 patients, 45 (83.33%) were confirmed with SHPT. The sensitivity, specificity, and accuracy of ultrasound were 70.89% (112/158), 86.21% (50/58), and 75.00% (162/216), respectively; while those of SPECT/CT were 92.41% (146/158), 94.83% (55/58), and 93.06% (201/216), respectively. The sensitivity and accuracy of SPECT/CT were significantly higher than those of ultrasound (both?P<0.001). The detection rates of SPECT/CT in the upper-left, lower-left, and upper-right regions were significantly higher than those of ultrasound (P<0.05).?Conclusion?99mTc-MIBI SPECT/CT dual-phase imaging demonstrates superior sensitivity and accuracy compared with cervical ultrasound in preoperative localization of SHPT, especially showing significant advantages in detecting lesions in the upper-left, lower-left, and upper-right regions. It can serve as an important supplement or the first-choice imaging modality for preoperative localization in SHPT patients.

目的 比较锝[???Tc]甲氧基异丁基异腈单光子发射计算机断层扫描/计算机断层扫描（???Tc-MIBI SPECT/CT）双时相显像与颈部超声在继发性甲状旁腺功能亢进症（SHPT）患者术前定位中的诊断价值。方法 回顾性纳入2025年5月至2026年4月于黔东南苗族侗族自治州人民医院行两种影像学检查的疑似SHPT患者54例。以手术病理结果为金标准，计算超声与SPECT/CT在区域层面（共216个区域）的敏感性、特异性、准确性，并比较不同解剖区域的病灶检出率。结果 54例中确诊SHPT 45例（83.33%）。超声诊断敏感性、特异性、准确性分别为70.89%（112/158）、86.21%（50/58）、75.00%（162/216）；SPECT/CT分别为92.41%（146/158）、94.83%（55/58）、93.06%（201/216）。SPECT/CT的敏感性和准确性均高于超声（P均<0.001）。SPECT/CT在左上、左下、右上三个区域的检出率均高于超声（P<0.05）。结论 99mTc-MIBI SPECT/CT双时相显像在SHPT术前定位中的敏感性和准确性优于颈部超声，尤其对左上、左下、右上区域病灶检出优势明显，可作为SHPT患者术前定位的重要补充或首选影像学方法。

Objective?To compare the diagnostic value of technetium-99m methoxyisobutylisonitrile single-photon emission computed tomography/computed tomography (99mTc-MIBI SPECT/CT) dual-phase imaging and cervical ultrasound in preoperative localization of secondary hyperparathyroidism (SHPT).?Methods?A total of 54 patients with suspected SHPT who underwent both imaging examinations at Qiandongnan Miao and Dong Autonomous Prefecture People's Hospital from May 2025 to April 2026 were retrospectively enrolled. Using surgical pathology as the gold standard, the sensitivity, specificity, and accuracy of ultrasound and SPECT/CT were calculated at the regional level (216 regions in total), and the detection rates in different anatomical regions were compared.?Results?Among the 54 patients, 45 (83.33%) were confirmed with SHPT. The sensitivity, specificity, and accuracy of ultrasound were 70.89% (112/158), 86.21% (50/58), and 75.00% (162/216), respectively; while those of SPECT/CT were 92.41% (146/158), 94.83% (55/58), and 93.06% (201/216), respectively. The sensitivity and accuracy of SPECT/CT were significantly higher than those of ultrasound (both?P<0.001). The detection rates of SPECT/CT in the upper-left, lower-left, and upper-right regions were significantly higher than those of ultrasound (P<0.05).?Conclusion?99mTc-MIBI SPECT/CT dual-phase imaging demonstrates superior sensitivity and accuracy compared with cervical ultrasound in preoperative localization of SHPT, especially showing significant advantages in detecting lesions in the upper-left, lower-left, and upper-right regions. It can serve as an important supplement or the first-choice imaging modality for preoperative localization in SHPT patients.