{
  "ptid_time": "035_S_6195_2018-02-07",
  "img_path": "/data/qiuhui/data/adni/images/035_S_6195/2018-02-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,392 mm³, 38.0% below the reference mean. With a Z-score of -0.87 (19.2th percentile), this represents normal volume ; hippocampal volume measures 6,533 mm³, 8.2% below the reference mean. With a Z-score of -0.75 (22.7th percentile), this represents normal volume ; whole brain volume measures 893,203 mm³, 8.4% below the reference mean. With a Z-score of -1.05 (14.6th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,693 mm³, 0.5% above the reference mean. With a Z-score of 0.03 (51.3th percentile), this represents normal volume ; fusiform gyrus volume measures 15,882 mm³, 6.6% below the reference mean. With a Z-score of -0.61 (27.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,690 mm³, 7.7% below the reference mean. With a Z-score of -0.67 (25.1th percentile), this represents normal volume . ",
  "text_data": "Age is 70.1 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 27.0. Logical Memory: 13.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mild whole-brain atrophy but otherwise normal volumes in key regions like the hippocampus, entorhinal cortex, and temporal structures. Cognitive scores (MMSE 29, MoCA 27) are within normal ranges, indicating no significant functional impairment.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (mild whole-brain atrophy could warrant monitoring, but current cognitive performance is intact)",
  "timestamp": "2025-07-26T05:59:22.558632"
}