{
  "ptid_time": "123_S_4170_2012-03-09",
  "img_path": "/data/qiuhui/data/adni/images/123_S_4170/2012-03-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,390 mm³, 49.0% below the reference mean. With a Z-score of -1.23 (11.0th percentile), this represents mild atrophy; hippocampal volume measures 9,191 mm³, 19.6% above the reference mean. With a Z-score of 2.20 (98.6th percentile), this represents significant enlargement; whole brain volume measures 1,101,040 mm³, 7.0% above the reference mean. With a Z-score of 0.87 (80.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,874 mm³, 0.5% below the reference mean. With a Z-score of -0.04 (48.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,060 mm³, 4.7% above the reference mean. With a Z-score of 0.53 (70.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,802 mm³, 11.1% above the reference mean. With a Z-score of 0.99 (83.9th percentile), this represents normal volume . ",
  "text_data": "Age is 66.1 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows mild ventricular atrophy but otherwise normal or above-average volumes in key regions (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 30, MoCA 29) are intact, and APOE4 status (heterozygous) does not strongly suggest imminent decline.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild ventricular atrophy, but preserved cognition and other volumes suggest no significant impairment)",
  "timestamp": "2025-07-26T12:32:15.538446"
}