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In-bore setup and software for 3T MRI-guided transperineal prostate biopsy
| Content Provider | Scilit |
|---|---|
| Author | Tokuda, Junichi Tuncali, Kemal Iordachita, Iulian Song, Sang-Eun Fedorov, Andrey Oguro, Sota Lasso, Andras Fennessy, Fiona M. Tempany, Clare M. Hata, Nobuhiko |
| Copyright Year | 2012 |
| Description | Journal: Physics in Medicine & Biology MRI-guided prostate biopsy in conventional closed-bore scanners requires transferring the patient outside the bore during needle insertion due to the constrained in-bore space, causing a safety hazard and limiting image feedback. To address this issue, we present our custom-made in-bore setup and software to support MRI-guided transperineal prostate biopsy in a wide-bore 3 Tesla (T) MRI scanner. The setup consists of a specially designed tabletop and a needle-guiding template with Z-frame that give a physician access to the perineum of the patient at the imaging position and allow performance of MRI-guided transperineal biopsy without moving the patient out of the scanner. The software and Z-frame allow registration of the template, target planning, and biopsy guidance. Initially, we performed phantom experiments to assess the accuracy of template registration and needle placement in a controlled environment. Subsequently, we embarked on our clinical trial (N = 10). The phantom experiments showed that the translational errors of the template registration along the right-left (RP) and anterior-posterior (AP) axes were 1.1 ± 0.8 mm and 1.4 ± 1.1 mm respectively, while the rotational errors around the RL, AP, and superior-inferior axes were 0.8 ± 1.0 degrees, 1.7 ± 1.6 degrees, and 0.0 ± 0.0 degrees respectively. The 2D root-mean-square (RMS) needle placement error was 3.0 mm. The clinical biopsy procedures were safely carried out in all ten clinical cases with a needle placement error of 5.4 mm (2D RMS). In conclusion, transperineal prostate biopsy in a wide-bore 3T scanner is feasible using our custom-made tabletop set up and software, which supports manual needle placement without moving the patient out of the magnet. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3517895/pdf |
| Ending Page | 5840 |
| Page Count | 18 |
| Starting Page | 5823 |
| ISSN | 00319155 |
| e-ISSN | 13616560 |
| DOI | 10.1088/0031-9155/57/18/5823 |
| Journal | Physics in Medicine & Biology |
| Issue Number | 18 |
| Volume Number | 57 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2012-09-05 |
| Access Restriction | Open |
| Subject Keyword | Journal: Physics in Medicine & Biology Radiology, Nuclear Medicine and Imaging Prostate Cancer Image-guided Therapy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Radiology, Nuclear Medicine and Imaging Radiological and Ultrasound Technology |
