{
  "ptid_time": "027_S_4869_2013-09-17",
  "img_path": "/data/qiuhui/data/adni/images/027_S_4869/2013-09-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,124 mm³, 21.8% below the reference mean. With a Z-score of -0.52 (30.1th percentile), this represents normal volume ; hippocampal volume measures 7,568 mm³, 0.1% above the reference mean. With a Z-score of 0.01 (50.5th percentile), this represents normal volume ; whole brain volume measures 1,087,790 mm³, 0.8% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,533 mm³, 13.8% below the reference mean. With a Z-score of -0.94 (17.4th percentile), this represents normal volume ; fusiform gyrus volume measures 19,265 mm³, 2.3% above the reference mean. With a Z-score of 0.19 (57.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,625 mm³, 1.3% above the reference mean. With a Z-score of 0.12 (54.8th percentile), this represents normal volume . ",
  "text_data": "Age is 78.2 years. Gender is Male. Education: 19 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 5.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges (Z-scores between -0.94 and +0.19). Cognitive scores (MMSE 30, MoCA 26) are normal for age, and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:59:20.735332"
}