{
  "ptid_time": "094_S_4434_2013-02-19",
  "img_path": "/data/qiuhui/data/adni/images/094_S_4434/2013-02-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,507 mm³, 28.4% below the reference mean. With a Z-score of -0.67 (25.0th percentile), this represents normal volume ; whole brain volume measures 993,241 mm³, 12.5% below the reference mean. With a Z-score of -1.76 (3.9th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,780 mm³, 11.3% below the reference mean. With a Z-score of -0.78 (21.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,413 mm³, 12.5% below the reference mean. With a Z-score of -1.04 (14.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,481 mm³, 4.2% below the reference mean. With a Z-score of -0.34 (36.6th percentile), this represents normal volume . ",
  "text_data": "Age is 67.5 years. Gender is Male. Education: 17 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The whole brain shows moderate atrophy (Z-score -1.76, 3.9th percentile), while the fusiform gyrus has mild atrophy (Z-score -1.04). Other regions are within normal ranges. Cognitive scores (MMSE 29, MoCA 25) are borderline for MCI, with no APOE4 risk allele.  \nDiagnosis: **Mild Cognitive Impairment (MCI)**  \nConfidence: **Medium** (structural atrophy supports MCI, but high MMSE and lack of APOE4 reduce certainty).",
  "timestamp": "2025-07-26T10:30:51.060457"
}