目的 探讨数字减影血管造影（DSA）在冠状动脉病变诊断中的应用价值，并评估血清学参数相对于DSA金标准的诊断效能。方法 本研究纳入100名确诊为冠心病的患者。病例组为100例DSA确诊的冠心病患者，对照组按1:1比例匹配100例同期接受DSA检查排除冠心病的患者。应用DSA技术分别评估冠心病的狭窄程度及部位等指征。回顾性收集并对比分析两组患者的各项血清学参数（cTnI、CK-MB、hs-CRP、LDL-C、TC），计算血清学指标诊断冠心病的效能，并进一步探究以上评估于入组患者性别亚组间的统计学差异。结果 病例组与对照组在性别、年龄、BMI等基线资料上均衡可比（P > 0.05）。以DSA为金标准，cTnI诊断冠心病的灵敏度为82.0%，特异度为85.0%；hs-CRP的灵敏度为85.0%，特异度为75.0%。 cTnI、hs-CRP水平随冠状动脉狭窄程度加重而显著升高（P < 0.05）。且以上冠心病评价指征于患者性别亚组间均无统计学差异（ P <0.05）。结论 DSA技术可用于冠状动脉病变发生的部位、形态、数目等指征的明确评估，且于不同性别亚组间无统计学差异。血清学参数，尤其是cTnI和hs-CRP，对冠心病具有良好的辅助诊断价值，其水平与病变严重程度相关，可作为DSA检查前的有效筛查工具，为后续的治疗提供重要的参考依据。

Objective: To investigate the clinical value of digital subtraction angiography (DSA) in the diagnosis of coronary artery disease (CAD) and to evaluate the diagnostic performance of serological parameters relative to the DSA gold standard. Methods: A total of 100 patients with confirmed CAD were included in this study. The case group comprised 100 patients with CAD confirmed by DSA, while the control group consisted of 100 age- and sex-matched individuals who underwent DSA during the same period and were excluded from CAD. DSA was employed to assess the degree and location of coronary artery stenosis. Retrospective collection and comparative analysis of serological parameters (cTnI, CK-MB, hs-CRP, LDL-C, TC) were performed between the two groups. The diagnostic efficacy of these serological indicators for CAD was calculated, and subgroup analyses were conducted to explore potential sex-related differences. Results: The case and control groups were comparable in baseline characteristics such as sex, age, and BMI (P > 0.05). Using DSA as the gold standard, the sensitivity and specificity of cTnI for diagnosing CAD were 82.0% and 85.0%, respectively; hs-CRP demonstrated a sensitivity of 85.0% and specificity of 75.0%. Levels of cTnI and hs-CRP increased significantly with the severity of coronary stenosis (P < 0.05). No statistically significant differences were observed between male and female subgroups (P > 0.05). Conclusion: DSA provides definitive assessment of lesion location, morphology, and number in coronary artery disease, with no significant sex-related differences. Serological markers, particularly cTnI and hs-CRP, demonstrate good auxiliary diagnostic value for CAD. Their levels correlate with disease severity and may serve as effective screening tools prior to DSA, offering important reference value for subsequent clinical management.

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.

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.

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.

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。

目的 探讨不同清洗方法对聚甲基丙烯酸甲酯（PMMA）骨水泥附着的骨科外来医疗器械清洗效果。方法 以河源地区某三级医院消毒供应中心2023年7—12月同型号PMMA骨水泥术后附着的215件骨科外来医疗器械为研究对象,所有器械均为不锈钢材质,表面光滑,无明显磨损,利用随机数字表将其分为对照组与观察组。对照组（107件）采用常规预处理后清洗消毒器清洗,观察组（108件）预处理采用95%乙醇浸泡15 min后联合快干增亮剂清洗消毒器清洗。比较两种不同清洗方法的清洗效果。结果 观察组的器械清洗消毒后更加光滑且清洁,对照组的器械表面有部分磨损且仍存在一定程度的残留物。采用10倍光源放大镜清洁度检查,对照组清洗合格100件,清洗合格率为93.5%;观察组清洗合格108件,清洗合格率为100%。采用杰力试纸法检测,观察组清洗合格率为100%,对照组清洗合格率为94.4%,采用快速检测三磷酸腺苷（ATP）生物荧光法检查,观察组清洗合格率为99.1%,对照组清洗合格率为93.5%,观察组的清洗合格率高于对照组,差异有统计学意义（P<0.05）。结论 PMMA骨水泥附着的骨科外来医疗器械采用95%乙醇浸泡15 min后联合快干增亮剂和清洗消毒器可以提高清洗合格率以及外来器械再处理技术的安全性,为安全质量管理提供了有利依据。该技术适合推广使用,能有效排除医疗隐患,确保医疗安全。

Objective To compare the cleaning effects of different methods on external orthopedic medical devices contaminated with PMMA bone cement. Methods A total of 215 external orthopedic medical devices contaminated with PMMA bone cement were selected from the disinfection supply center of a tertiary hospital in Heyuan from July to December 2023．All devices were made of stainless steel,with smooth surfaces and no significant abrasion．The devices were randomly divided into control group and observation group using a random number table．The control group（107 devices）was cleaned using conventional pre-treatment followed by a cleaning and disinfection machine．The observation group（108 devices）was pre-treated by soaking in 95% medical ethanol for 15 minutes,followed by cleaning with a quick-drying brightener and a cleaning and disinfection machine．The cleaning effects of the two methods were compared．Results The study showed that the devices in the observation group were smoother and cleaner after cleaning and disinfection,while the devices in the control group had some abrasion and residual contaminants．Using a 10 x magnifying glass to check cleanliness,the control group had 107 devices passed the cleaning test,with a pass rate of 93.5%,while the observation group had 108 devices passed,with a pass rate of 100%．Using the Geri test paper method,the observation group had a cleaning pass rate of 100%,and the control group had a pass rate of 94.4%．Using the ATP bioluminescence method,the observation group had a cleaning pass rate of 99.1%,and the control group had a pass rate of 93.5%．The cleaning pass rate of the observation group was higher than that of the control group,with a statistically significant difference（P<0.05）．Conclusions Soaking external orthopedic medical devices contaminated with PMMA bone cement in 95% medical ethanol for 15 minutes,followed by cleaning with a quick-drying brightener and a cleaning and disinfection machine,can improve the cleaning pass rate and enhance the safety of reprocessing external devices．This technique provides a strong basis for safety and quality management,is suitable for widespread use,which effectively eliminates medical hazards,and ensures medical safety．