{
  "ptid_time": "011_S_6367_2019-05-30",
  "img_path": "/data/qiuhui/data/adni/images/011_S_6367/2019-05-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,066 mm³, 40.3% below the reference mean. With a Z-score of -1.09 (13.8th percentile), this represents mild atrophy; hippocampal volume measures 8,006 mm³, 23.3% above the reference mean. With a Z-score of 1.86 (96.9th percentile), this represents moderate enlargement; whole brain volume measures 1,121,440 mm³, 20.8% above the reference mean. With a Z-score of 2.50 (99.4th percentile), this represents significant enlargement; entorhinal cortex volume measures 5,360 mm³, 54.8% above the reference mean. With a Z-score of 2.96 (99.8th percentile), this represents significant enlargement; fusiform gyrus volume measures 21,649 mm³, 34.4% above the reference mean. With a Z-score of 2.58 (99.5th percentile), this represents significant enlargement; middle temporal gyrus volume measures 25,082 mm³, 39.1% above the reference mean. With a Z-score of 3.48 (100.0th percentile), this represents profound enlargement. ",
  "text_data": "Age is 82.2 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The imaging data shows significant enlargement in multiple brain regions (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) with only mild ventricular atrophy. Cognitive scores (MMSE 30, MoCA 27) are within normal limits for age, and there is no APOE4 risk allele. These findings are atypical for neurodegenerative disease.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:03:36.746059"
}