{
  "ptid_time": "023_S_4241_2012-09-27",
  "img_path": "/data/qiuhui/data/adni/images/023_S_4241/2012-09-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,672 mm³, 30.7% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume ; hippocampal volume measures 7,207 mm³, 1.3% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; whole brain volume measures 1,092,860 mm³, 12.1% above the reference mean. With a Z-score of 1.53 (93.7th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,186 mm³, 13.3% below the reference mean. With a Z-score of -0.81 (20.8th percentile), this represents normal volume ; fusiform gyrus volume measures 20,671 mm³, 21.5% above the reference mean. With a Z-score of 1.96 (97.5th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 21,574 mm³, 12.5% above the reference mean. With a Z-score of 1.09 (86.2th percentile), this represents mild enlargement. ",
  "text_data": "Age is 70.3 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows normal hippocampal and ventricular volumes, with mild to moderate enlargement in other regions (whole brain, fusiform gyrus, middle temporal gyrus). The entorhinal cortex is slightly reduced but still within the normal range. Cognitive scores (MMSE 30, MoCA 27) are intact, and there is no APOE4 risk allele.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T03:04:34.877792"
}