Dataset Information

Patient specific Polymethyl methacrylate customised cranioplasty using 3D printed silicone moulds: Technical note.

ABSTRACT:

Introduction

Cranioplasty after decompressive craniectomy can be performed with several techniques and materials. With the common use of 3D printing, custom cranioplasty can be produced at affordable cost. Aim of this technical note is to describe our technique for producing patient specific Polymethyl methacrylate (PMMA) cranioplasty using 3D printed silicone moulds.

Materials and methods

We enrolled seven patients from January 2020 to June 2021 who required surgery for cranioplasty. The 3D printing was used to produce silicone moulds for defining the exact shape of the PMMA cranioplasty, according to the CT scan of the patient.

Results

We performed seven procedures. The mean time of the surgery was 80 min. All cranioplasties perfectly matched the patient specific anatomy. No complications occurred.

Conclusions

Using 3D printed patient specific silicone moulds and PMMA resulted to be effective, with affordable costs and ensuring a good cosmetic result.

SUBMITTER: Scerrati A

PROVIDER: S-EPMC9285906 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature

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Publications

Patient specific Polymethyl methacrylate customised cranioplasty using 3D printed silicone moulds: Technical note.

Scerrati Alba A Travaglini Francesco F Gelmi Clarissa Ann Elisabeth CAE Lombardo Andrea A De Bonis Pasquale P Cavallo Michele Alessandro MA Zamboni Paolo P

The international journal of medical robotics + computer assisted surgery : MRCAS 20211124 2

<h4>Introduction</h4>Cranioplasty after decompressive craniectomy can be performed with several techniques and materials. With the common use of 3D printing, custom cranioplasty can be produced at affordable cost. Aim of this technical note is to describe our technique for producing patient specific Polymethyl methacrylate (PMMA) cranioplasty using 3D printed silicone moulds.<h4>Materials and methods</h4>We enrolled seven patients from January 2020 to June 2021 who required surgery for craniopla ...[more]

PMID: 34786816

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Project description:Abstract End?to?end testing of a new breast radiotherapy technique preferably requires realistic phantom geometries, which is challenging to achieve using currently commercially available solutions. We have developed a series of three?dimensional (3D)?printed breast phantoms, with ionization chamber and radiochromic film inserts, which can be attached to a commercial anthropomorphic thorax phantom. A contoured left breast from a patient’s planning CT was mapped onto a CT of the CIRS E2E thorax phantom (CIRS Inc.) and cropped to fit the surface. Four versions of the breast were 3D printed, containing a cavity for an ionization chamber and slits for radiochromic film insertion in the three cardinal planes, respectively. The phantoms were fully compatible with surface scanning technology used for setup. The phantoms were validated using a whole?breast volumetric modulated arc therapy protocol with a simultaneous integrated boost to the tumor bed (VMAT?SIB). Six patient plans and one original plan on the breast phantom were verified with planar portal imaging, point dose, and film measurements in the MultiCube phantom and planar ??analysis using ArcCHECK diode array. Six patient plans were recalculated on the breast phantom (hybrid plans) and delivered with point dose and film measurements with 3% (local)/2 mm ??analysis. One complete end?to?end test on the breast phantom was performed. All plan quality verifications had point dose differences below 2.4% from the calculated dose and ??agreement scores (?AS) > 87.3% for film measurements in the MultiCube, portal dosimetry, and ArcCHECK. Point dose differences in the 3D?printed phantoms were below 2.6% (median ?1.4%, range ?2.6%; 0.3%). Median ?AS was 96.4% (range 80.1%–99.7%) for all film inserts. The proposed 3D?printed attachable breast dosimetry phantoms have been shown to be a valuable tool for end?to?end testing of a new radiotherapy protocol. The workflow described in this report can aid users to create their own phantom?specific breast 3D?printed phantoms.

Dataset Information

Patient specific Polymethyl methacrylate customised cranioplasty using 3D printed silicone moulds: Technical note.

Introduction

Materials and methods

Results

Conclusions

Publications

Patient specific Polymethyl methacrylate customised cranioplasty using 3D printed silicone moulds: Technical note.

Similar Datasets

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