Purpose: To evaluate the accuracy of measuring volumes using three-dimensional ultrasound (3D US), and to verify the feasibility of the replacement of CT-MR fusion images with CT-3D US in radiotherapy treatment planning.
Methods: Phantoms, consisting of water, contrast agent, and agarose, were manufactured. The volume was measured using 3D US, CT, and MR devices. A CT-3D US and MR-3D US image fusion software was developed using the Insight Toolkit library in order to acquire three-dimensional fusion images. The quality of the image fusion was evaluated using metric value and fusion images.
Results: Volume measurement, using 3D US, shows a 2.8 ± 1.5% error, 4.4 ± 3.0% error for CT, and 3.1 ± 2.0% error for MR. The results imply that volume measurement using the 3D US devices has a similar accuracy level to that of CT and MR. Three-dimensional image fusion of CT-3D US and MR-3D US was successfully performed using phantom images. Moreover, MR-3D US image fusion was performed using human bladder images.
Conclusions: 3D US could be used in the volume measurement of human bladders and prostates. CT-3D US image fusion could be used in monitoring the target position in each fraction of external beam radiation therapy. Moreover, the feasibility of replacing the CT-MR image fusion to the CT-3D US in radiotherapy treatment planning was verified.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1118/1.4767753 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Automatic machine learning accurately predicts the efficacy of immunotherapy for patients with inoperable advanced non-small cell lung cancer using a computed tomography-based radiomics model.
Diagn Interv Radiol
January 2025
Huadong Hospital, Fudan University, Department of Thoracic Surgery, Shanghai, China.
Purpose: Patients with advanced non-small cell lung cancer (NSCLC) have varying responses to immunotherapy, but there are no reliable, accepted biomarkers to accurately predict its therapeutic efficacy. The present study aimed to construct individualized models through automatic machine learning (autoML) to predict the efficacy of immunotherapy in patients with inoperable advanced NSCLC.
Methods: A total of 63 eligible participants were included and randomized into training and validation groups.
Does the type of the previous biopsy affect the fusion prostate biopsy results?
Prostate Int
September 2024
Erciyes University, Department of Urology, Devision of UroOncology, Kayseri, Turkey.
Background: It has been more than a decade since fusion prostate biopsy (FPB) has been used in the diagnosis of prostate cancer (PCa). Therefore, patients with a previous history of negative FPB and ongoing suspicion of PCa are beginning to emerge. This study investigated whether the first biopsy type (standard or fusion) should be effective in deciding on a second biopsy.
View Article and Find Full Text PDFAnterior lumbar interbody fusion: patient selection and workup.
J Spine Surg
December 2024
Department of Neurosurgery, Geisinger Neuroscience Institute, Danville, PA, USA.
Anterior lumbar interbody fusion (ALIF) is an anterior surgical approach for interbody fusion in the lumbar spine which affords the surgeon unfettered access to the disc space and allows for release of the anterior longitudinal ligament and insertion of a large, lordotic interbody graft. Despite the benefits associated with ALIF when compared with other lumbar interbody fusion techniques, the ALIF approach is associated with a number of unique complications, and certain patient-specific criteria (e.g.
View Article and Find Full Text PDFNon-instrumented management of traumatic atlanto-axial rotatory subluxation: surgical technique.
J Spine Surg
December 2024
Department of Neurosurgery, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.
Atlantoaxial rotatory subluxation (AARS) in the adult population is primarily trauma-induced. Conservative and surgical treatments have both been used successfully in treating AARS. In cases where AARS cannot be reduced by conservative measures, open reduction and fusion is the conventional treatment approach.
View Article and Find Full Text PDFGlobal disparities in neurosurgical care necessitate innovations addressing affordability and accuracy, particularly for critical procedures like ventriculostomy. This intervention, vital for managing life-threatening intracranial pressure increases, is associated with catheter misplacement rates exceeding 30% when using a freehand technique. Such misplacements hold severe consequences including haemorrhage, infection, prolonged hospital stays, and even morbidity and mortality.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!