{
  "ptid_time": "073_S_0746_2007-08-01",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0746/2007-08-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,366 mm³, 4.6% above the reference mean. With a Z-score of 0.11 (54.2th percentile), this represents normal volume ; hippocampal volume measures 6,916 mm³, 2.8% below the reference mean. With a Z-score of -0.26 (39.9th percentile), this represents normal volume ; whole brain volume measures 999,408 mm³, 2.5% above the reference mean. With a Z-score of 0.32 (62.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,151 mm³, 13.0% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,201 mm³, 1.1% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,003 mm³, 0.9% below the reference mean. With a Z-score of -0.08 (47.0th percentile), this represents normal volume . ",
  "text_data": "Age is 74.3 years. Gender is Female. Education: 18 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges (Z-scores between -0.26 and +0.80). The MMSE score of 29 is within the normal range (≥26), and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:34:02.302772"
}