| 刘鹏,李红磊,富丽萍.比较不同测量肾脏深度方法及其对肾动态显像评估肾小球滤过率的影响[J].中国医学影像技术,2021,37(6):929~932 |
| 比较不同测量肾脏深度方法及其对肾动态显像评估肾小球滤过率的影响 |
| Comparison on calculation methods for renal depth and the impacts on glomerular filtration rate in renal dynamic imaging |
| 投稿时间：2020-06-09 修订日期：2020-10-09 |
| DOI：10.13929/j.issn.1003-3289.2021.06.032 |
| 中文关键词: 肾小球滤过率 放射性核素显像 肾脏深度 |
| 英文关键词:glomerular filtration rate radionuclide imaging kidney depth |
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| 中文摘要: |
| 目的 对比采用CT、SPECT/CT侧位相、Tonnesen公式及Taylor公式4种方法得出的肾脏深度的差异，观察其对肾动态显像评估分肾肾小球滤过率（GFR）的影响。方法 连续收集84例同时接受放射性核素肾动态显像及腹部CT检查患者，采用CT、SPECT/CT侧位像、Tonnesen公式及Taylor公式测量双侧肾脏深度，并将之代入Gates法，获得校正后的分肾GFR。以CT测定值为肾脏标准深度，分析其他3种方法所测双肾深度的差异及其对分肾GFR测定值的影响。结果 SPECT/CT侧位像、Tonnesen公式和Taylor公式与CT所测双肾深度差异均有统计学意义（P均<0.001）。SPECT/CT侧位像与CT测值的差值与肾脏标准深度无相关（P均>0.05），而Tonnesen公式和Taylor公式测值与CT测值的差值均与肾脏标准深度呈中度相关（右肾rTonnesen=0.781，左肾rTonnesen=0.804；右肾rTaylor=0.639，左肾rTaylor=0.613，P均<0.01）。以4种方法得到的分肾GFR之间差异有统计学意义（P<0.001）。结论 以CT测定肾脏深度为标准，在肾动态显像中以不同方法校正双侧肾脏深度，有助于提高测量肾脏深度以及测算GFR的准确性。通过SPECT/CT侧位显像测量肾脏深度更具临床价值。 |
| 英文摘要: |
| Objective To compare the differences of renal depth measured with CT, lateral imaging of SPECT/CT, Tonnesen formula and Taylor formula, and to observe the impacts on glomerular filtration rate (GFR). Methods A total of 84 patients who underwent kidney dynamic imaging and abdominal CT scanning at the same time were collected. The depths of double kidneys were measured with CT, lateral imaging of SPECT/CT, Tonnesen formula and Taylor formula, respectively. Corrected GFR was recalculated with Gates method using the renal depth measured with the above methods. The differences of renal depth and the impacts on GFR were analyzed taken CT measurements as the standards. Results Compared with the standard renal depths, renal depth obtained with lateral imaging of SPECT/CT, Tonnesen formula and Taylor formula were significant different (all P<0.001). The difference of renal depths obtained with lateral imaging of SPECT/CT and CT was no correlated with the standard renal depths (all P>0.05), however, those obtained with Tonnesen formula and Taylor formula were moderately correlated with the standard renal depths (Tonnesen formula: right kidney r=0.781, left kidney r=0.804; Taylor formula: right kidney r=0.639, left kidney r=0.613). There were significant differences of GFR obtained with different methods (P<0.001). Conclusion Taken CT measurements of renal depth as the standards, calibration of renal depth obtained with different methods during dynamic renal imaging could improve the accuracy of renal depth measurement and the estimation of GFR. Lateral imaging of SPECT/CT was valuable in clinical practice. |
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