{
  "ptid_time": "067_S_0177_2007-04-18",
  "img_path": "/data/qiuhui/data/adni/images/067_S_0177/2007-04-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 58,985 mm³, 110.2% above the reference mean. With a Z-score of 2.52 (99.4th percentile), this represents significant enlargement; hippocampal volume measures 5,137 mm³, 27.8% below the reference mean. With a Z-score of -2.55 (0.5th percentile), this represents significant atrophy; whole brain volume measures 783,917 mm³, 19.6% below the reference mean. With a Z-score of -2.46 (0.7th percentile), this represents significant atrophy; entorhinal cortex volume measures 2,965 mm³, 19.3% below the reference mean. With a Z-score of -1.18 (11.8th percentile), this represents mild atrophy; fusiform gyrus volume measures 14,355 mm³, 15.6% below the reference mean. With a Z-score of -1.42 (7.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,086 mm³, 5.7% below the reference mean. With a Z-score of -0.49 (31.2th percentile), this represents normal volume . ",
  "text_data": "Age is 75.8 years. Gender is Female. Education: 14 years. MMSE: 30.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows significant hippocampal and whole-brain atrophy, along with ventricular enlargement, which are strong indicators of neurodegeneration. However, the MMSE score of 30 (normal) and absence of APOE4 suggest no current cognitive impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to conflicting imaging and clinical findings)",
  "timestamp": "2025-07-26T08:26:58.759093"
}