{
  "ptid_time": "130_S_4883_2012-08-10",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4883/2012-08-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,999 mm³, 46.6% below the reference mean. With a Z-score of -1.07 (14.3th percentile), this represents mild atrophy; hippocampal volume measures 7,546 mm³, 6.1% above the reference mean. With a Z-score of 0.56 (71.1th percentile), this represents normal volume ; whole brain volume measures 1,005,480 mm³, 3.2% above the reference mean. With a Z-score of 0.40 (65.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,733 mm³, 1.6% above the reference mean. With a Z-score of 0.10 (54.0th percentile), this represents normal volume ; fusiform gyrus volume measures 17,343 mm³, 1.9% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,781 mm³, 13.6% above the reference mean. With a Z-score of 1.18 (88.2th percentile), this represents mild enlargement. ",
  "text_data": "Age is 76.1 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Neurologic; Cardiovascular; Dermatologic-Connective Tissue; Endocrine-Metabolic; Hematopoietic-Lymphatic; Major Surgical Procedures. MMSE: 29.0. MoCA: 27.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.04 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular atrophy (Z-score -1.07) but otherwise normal hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus volumes. Cognitive scores (MMSE 29, MoCA 27) are within normal limits, and amyloid PET (AV45) is negative. No APOE4 risk alleles are present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T14:52:59.955073"
}