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<p>To develop and validate a novel rapid surface projection localization technique (RSPLT) using 3D Slicer and smartphone-assisted registration for precise keyhole evacuation of intracerebral hematomas. Technical workflow of RSPLT was established: (1) 3D Slicer-based hematoma reconstruction and sagittal plane optimization; (2) Transparent overlay of hematoma contours onto scalp morphology; (3) Smartphone-leveler guided via anatomical landmarks. The technique was applied in 28 consecutive ICH cases, with intraoperative validation of localization accuracy. RSPLT achieved complete hematoma projection within 7.98 ± 1.18&#xa0;min (range 6.1–9.8&#xa0;min). Intraoperative validation using caliper measurement confirmed sub-millimeter surface landmark registration error (1.2 ± 0.3&#xa0;mm). The technique enabled minimal access (bone window 3.10 ± 0.63&#xa0;cm, range 2.3–5.4&#xa0;cm) with 95.31 ± 5.56% clearance (range 78.2-99.74%), suggesting it may offer a potentially more efficient alternative to conventional CT-guided planning. Postoperative ADL scores improved significantly from 53.12 ± 5.63 to 83.17 ± 9.54 at three months. This proof-of-concept study demonstrates that RSPLT can provide a rapid, low-cost, and accurate approach for hematoma spatial mapping, which may aid in the precision of keyhole trajectory design. These preliminary from a single-center experience findings warrant further comparative studies to validate its clinical utility against existing methods.</p>

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A novel rapid surface projection localization technique (RSPLT) using 3D slicer and smartphone-assisted registration for keyhole evacuation of intracerebral hematomas

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月12日

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  • Chuan He,
  • Qi Zhong,
  • Ying Yang,
  • Yong-sheng Lei,
  • Gang Cao

摘要

To develop and validate a novel rapid surface projection localization technique (RSPLT) using 3D Slicer and smartphone-assisted registration for precise keyhole evacuation of intracerebral hematomas. Technical workflow of RSPLT was established: (1) 3D Slicer-based hematoma reconstruction and sagittal plane optimization; (2) Transparent overlay of hematoma contours onto scalp morphology; (3) Smartphone-leveler guided via anatomical landmarks. The technique was applied in 28 consecutive ICH cases, with intraoperative validation of localization accuracy. RSPLT achieved complete hematoma projection within 7.98 ± 1.18 min (range 6.1–9.8 min). Intraoperative validation using caliper measurement confirmed sub-millimeter surface landmark registration error (1.2 ± 0.3 mm). The technique enabled minimal access (bone window 3.10 ± 0.63 cm, range 2.3–5.4 cm) with 95.31 ± 5.56% clearance (range 78.2-99.74%), suggesting it may offer a potentially more efficient alternative to conventional CT-guided planning. Postoperative ADL scores improved significantly from 53.12 ± 5.63 to 83.17 ± 9.54 at three months. This proof-of-concept study demonstrates that RSPLT can provide a rapid, low-cost, and accurate approach for hematoma spatial mapping, which may aid in the precision of keyhole trajectory design. These preliminary from a single-center experience findings warrant further comparative studies to validate its clinical utility against existing methods.