Objective: To validate the use of a three-dimensional printing system for metric and volumetric analysis of the segments of an abdominal aortic aneurysm (AAA).
Materials And Methods: In patients scheduled to undergo endovascular AAA repair, the computed tomography angiography (CTA) measurements obtained during the preoperative assessment of the patients were compared with those obtained by computed tomography of individualized three-dimensional biomodels.
Results: The volumetric assessment showed a discrepancy of 3-12%, and the difference between the areas was 10-16%.
Conclusion: Computed tomography measurements of 3D-printed biomodels of AAAs appear to be comparable to those of threedimensional CTA measurements of the same AAAs, in terms of the metric and volumetric dimensions.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7863711 | PMC |
http://dx.doi.org/10.1590/0100-3984.2019.0117 | DOI Listing |
JAMA Otolaryngol Head Neck Surg
January 2025
Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, Tennessee.
Importance: Cochlear implants enable improvements in speech perception, but music perception outcomes remain variable. Image-guided cochlear implant programming has emerged as a potential programming strategy for increasing the quality of spectral information delivered through the cochlear implant to improve outcomes.
Objectives: To perform 2 experiments, the first of which modeled the variance in music perception scores as a function of electrode positioning factors, and the second of which evaluated image-guided cochlear implant programming as a strategy to improve music perception with a cochlear implant.
Gastric Cancer
January 2025
Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, China.
Background: Laparoscopic gastrectomy lacks hand-direct tactile sense and has a limited surgical field compared to laparotomy. Apart from textbook classification, there are anatomical variations in the gastric arteries. Laparoscopic gastrectomy presents technical difficulties and necessitates a more comprehensive comprehension of regional anatomy than open surgical procedures.
View Article and Find Full Text PDFInsights Imaging
January 2025
Department of Radiology, Yongchuan Hospital of Chongqing Medical University, Chongqing, China.
Objectives: To develop and validate the performance of CT-based radiomics models for predicting the prognosis of acute pancreatitis.
Methods: All 344 patients (51 ± 15 years, 171 men) in a first episode of acute pancreatitis (AP) were retrospectively enrolled and randomly divided into training (n = 206), validation (n = 69), and test (n = 69) sets with the ratio of 6:2:2. The patients were dichotomized into good and poor prognosis subgroups based on follow-up CT and clinical data.
CVIR Endovasc
January 2025
Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
Background: Hepatic artery infusion pump (HAIP) chemotherapy is a locoregional treatment for intrahepatic malignancies. HAIPs are surgically implanted, and the catheter tip is typically inserted into a ligated gastroduodenal artery stump. Potential complications at the catheter insertion site include dehiscence, pseudoaneurysm or extravasation, and adjacent hepatic arterial stenosis and thrombosis.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Roche Diagnostics International AG, Rotkreuz, Zug, Switzerland.
Background: Use of neuroimaging [e.g. magnetic resonance imaging (MRI), positron emission tomography (PET), or computed tomography (CT) scan], cerebrospinal fluid (CSF), and blood biomarker tests can contribute to a more accurate and earlier diagnosis of Alzheimer's disease (AD).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!