Urology Department, Hospital Universitario Clínico San Carlos, Madrid, Spain.
World J Urol. 2024 Jul 16;42(1):416. doi: 10.1007/s00345-024-05116-9.
Protocol description for renal perfusion study using thermographic technology and description of the thermographic and clinical behavior of the transplanted kidneys before and after unclamping.
Infrared thermographic images of renal grafts are obtained before kidney reperfusion, 10 min after and just before closing the surgical wound. Thermographic data is evaluated together with the type of graft and donor, cold ischemia time, hypovascularized areas determined by the surgeon during surgical intervention, alterations in vascular flow in postoperative echo-Doppler, time at the beginning of graft function and serum creatinine monitoring during postoperative follow-up.
17 grafts were studied. The mean temperature of the grafts before reperfusion, 10 min after and at the end of the surgery were 18.7 °C (SD 6.27), 32.36 °C (SD1.47) and 32.07 °C (SD1.78) respectively. 4 grafts presented hypoperfused areas after reperfusion. These areas presented a lower temperature compared to the well perfused parenchyma surface using thermographic images.
The study of the usefulness and applicability of thermography can allow the development of tools that provide additional objective information on organ perfusion in real time and non-invasive manner. Our protocol and initial results can contribute to provide new evidence. Further analyses should be developed to shed light on the role of this technology.
描述使用热成像技术进行肾脏灌注研究的方案，并描述移植肾在松开夹闭前后的热成像和临床行为。
在肾脏再灌注前、再灌注后 10 分钟和手术即将关闭时，获取肾移植物的红外热图像。将热成像数据与移植物和供体的类型、冷缺血时间、外科手术期间外科医生确定的低灌注区域、术后 echo-Doppler 中血管血流的变化、移植物功能开始时间以及术后随访期间的血清肌酐监测值一起进行评估。
研究了 17 个移植物。再灌注前、再灌注后 10 分钟和手术结束时移植物的平均温度分别为 18.7°C（SD6.27）、32.36°C（SD1.47）和 32.07°C（SD1.78）。4 个移植物在再灌注后出现低灌注区。与热图像上灌注良好的实质表面相比，这些区域的温度较低。
研究热成像的有用性和适用性可以开发出工具，以实时、非侵入性的方式提供有关器官灌注的额外客观信息。我们的方案和初步结果可以为提供新的证据做出贡献。应进一步分析以阐明该技术的作用。
