{
  "ptid_time": "094_S_4434_2012-07-17",
  "img_path": "/data/qiuhui/data/adni/images/094_S_4434/2012-07-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,926 mm³, 37.0% below the reference mean. With a Z-score of -0.88 (19.0th percentile), this represents normal volume ; whole brain volume measures 1,012,900 mm³, 10.7% below the reference mean. With a Z-score of -1.52 (6.5th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,846 mm³, 9.8% below the reference mean. With a Z-score of -0.68 (24.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,827 mm³, 15.5% below the reference mean. With a Z-score of -1.29 (9.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,692 mm³, 3.2% below the reference mean. With a Z-score of -0.26 (39.6th percentile), this represents normal volume . ",
  "text_data": "Age is 67.0 years. Gender is Male. Education: 17 years. MMSE: 26.0. MoCA: 24.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows moderate whole brain atrophy and mild fusiform gyrus atrophy, but other regions (ventricular, entorhinal cortex, middle temporal gyrus) are within normal ranges. Cognitive scores (MMSE 26, MoCA 24) are slightly below optimal but not severely impaired. No APOE4 allele is present.  \nDiagnosis: Mild Cognitive Impairment (MCI)  \nConfidence: Medium",
  "timestamp": "2025-07-26T10:30:44.228858"
}