{
  "ptid_time": "002_S_2073_2013-10-01",
  "img_path": "/data/qiuhui/data/adni/images/002_S_2073/2013-10-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,477 mm³, 0.6% above the reference mean. With a Z-score of 0.02 (50.6th percentile), this represents normal volume ; hippocampal volume measures 7,477 mm³, 2.7% below the reference mean. With a Z-score of -0.30 (38.1th percentile), this represents normal volume ; whole brain volume measures 1,056,400 mm³, 2.6% above the reference mean. With a Z-score of 0.33 (62.9th percentile), this represents normal volume ; entorhinal cortex volume measures 5,148 mm³, 32.2% above the reference mean. With a Z-score of 2.50 (99.4th percentile), this represents significant enlargement; fusiform gyrus volume measures 19,473 mm³, 6.9% above the reference mean. With a Z-score of 0.78 (78.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,173 mm³, 1.7% below the reference mean. With a Z-score of -0.15 (44.0th percentile), this represents normal volume . ",
  "text_data": "Age is 66.4 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with the exception of the entorhinal cortex, which shows significant enlargement (Z-score 2.50, 99.4th percentile). Cognitive scores (MMSE 30, MoCA 26) are normal, and there is no APOE4 risk allele. The hippocampal volume is slightly reduced but still within normal limits.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to the atypical entorhinal cortex enlargement, though cognitive scores and other volumes are normal)",
  "timestamp": "2025-07-25T20:19:33.062535"
}