{
  "ptid_time": "021_S_0178_2006-02-10",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0178/2006-02-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,113 mm³, 26.4% below the reference mean. With a Z-score of -0.63 (26.6th percentile), this represents normal volume ; hippocampal volume measures 6,983 mm³, 13.0% below the reference mean. With a Z-score of -1.30 (9.7th percentile), this represents mild atrophy; whole brain volume measures 1,009,930 mm³, 11.0% below the reference mean. With a Z-score of -1.55 (6.0th percentile), this represents moderate atrophy; entorhinal cortex volume measures 3,291 mm³, 22.8% below the reference mean. With a Z-score of -1.58 (5.7th percentile), this represents moderate atrophy; fusiform gyrus volume measures 18,370 mm³, 7.7% below the reference mean. With a Z-score of -0.64 (26.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,791 mm³, 11.7% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume . ",
  "text_data": "Age is 64.8 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Renal-Genitourinary; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal, whole brain, and entorhinal cortex volumes show mild to moderate atrophy, which is concerning for neurodegenerative changes. However, the MMSE score of 29 is within the normal range, and there is no APOE4 allele present, which reduces genetic risk.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (due to structural atrophy but preserved cognitive function on MMSE)",
  "timestamp": "2025-07-26T01:22:21.874503"
}