{
  "ptid_time": "002_S_2073_2011-09-22",
  "img_path": "/data/qiuhui/data/adni/images/002_S_2073/2011-09-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,766 mm³, 7.0% below the reference mean. With a Z-score of -0.18 (43.0th percentile), this represents normal volume ; hippocampal volume measures 7,270 mm³, 5.4% below the reference mean. With a Z-score of -0.61 (27.2th percentile), this represents normal volume ; whole brain volume measures 1,060,710 mm³, 3.1% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,717 mm³, 21.2% above the reference mean. With a Z-score of 1.64 (95.0th percentile), this represents moderate enlargement; fusiform gyrus volume measures 19,477 mm³, 7.0% above the reference mean. With a Z-score of 0.78 (78.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,114 mm³, 2.0% below the reference mean. With a Z-score of -0.18 (43.0th percentile), this represents normal volume . ",
  "text_data": "Age is 64.4 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Musculoskeletal; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 29.0. MoCA: 26.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with only the entorhinal cortex showing moderate enlargement (Z-score 1.64, 95th percentile). Cognitive scores (MMSE 29, MoCA 26) are within normal limits for age, and there is no APOE4 genetic risk factor. No significant atrophy in hippocampal or other key regions suggests no major neurodegenerative pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T20:19:09.231973"
}