{
  "ptid_time": "041_S_5026_2013-12-11",
  "img_path": "/data/qiuhui/data/adni/images/041_S_5026/2013-12-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,995 mm³, 0.3% below the reference mean. With a Z-score of -0.01 (49.8th percentile), this represents normal volume ; hippocampal volume measures 8,087 mm³, 13.7% above the reference mean. With a Z-score of 1.25 (89.5th percentile), this represents mild enlargement; whole brain volume measures 996,825 mm³, 2.3% above the reference mean. With a Z-score of 0.29 (61.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,108 mm³, 15.4% below the reference mean. With a Z-score of -0.94 (17.3th percentile), this represents normal volume ; fusiform gyrus volume measures 13,497 mm³, 20.7% below the reference mean. With a Z-score of -1.88 (3.0th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 15,334 mm³, 20.0% below the reference mean. With a Z-score of -1.74 (4.1th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 71.5 years. Gender is Female. Education: 18 years. MMSE: 28.0. MoCA: 19.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate atrophy in the fusiform gyrus and middle temporal gyrus, which are regions often affected in Alzheimer's disease. Despite normal hippocampal and whole brain volumes, the significant atrophy in these areas, combined with a low MoCA score (19/30) and an APOE4 allele, suggests cognitive impairment. The MMSE score (28/30) is relatively preserved, which may indicate mild deficits.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium (due to conflicting MMSE/MoCA scores but clear structural atrophy in AD-vulnerable regions)",
  "timestamp": "2025-07-26T07:23:38.561130"
}