scholarly journals Incidental Findings Diagnosed during Preprocedural Evaluation of TAVR

2019 ◽  
Vol 2019 ◽  
pp. 1-5
Author(s):  
Levent Sahiner ◽  
Cem Coteli ◽  
Ahmet Kivrak ◽  
Yusuf Ziya Sener ◽  
Serkan Asil ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Therapeutic Option ◽  
Computed Tomography Imaging ◽  
Transcatheter Aortic Valve ◽  
High Surgical Risk ◽  
Complex Procedure ◽  
Cardiology Clinic ◽  
Extensive Information ◽  
The Mean ◽  
Adult Hospital

Introduction. Transcatheter aortic valve replacement is an important therapeutic option for aortic stenosis (AS) patients who have high surgical risk. TAVR is a complex procedure. Proper preparation of the patient is of significant importance for the final success and affects the morbidity and mortality of the TAVR directly. Pre-TAVR computed tomography is one of the corner stones of these preparation steps, and many patients get some incidental diagnoses. Materials and Methods. In this trial, we have investigated 155 patients who had underwent TAVR between February 2013 and March 2017 at Hacettepe University Adult Hospital Cardiology Clinic. Results. Total number of incidental diagnoses was 541, and 451 of them were the first diagnoses. Total number of cardiovascular findings and noncardiovascular findings was 369 and 172, respectively. The most common cardiovascular finding is atherosclerotic heart disease (139, 89.6%). The most common noncardiovascular finding is pulmonary nodule (41, 26.4%). 143 of 155 patients had at least one incidental diagnosis after the reassessment, and 33 different diagnoses were identified with computed tomography. The mean STS-PROM was 8.38% (range 2.8% to 23%), and the mean STS-PROM was calculated 9.4% (range 3.6% to 23%) after the reassessment of computed tomography. Conclusion. Preprocedural evaluation is one of the most important steps in TAVR. Computed tomography imaging provides extensive information, not only for procedure planning. Our findings emphasize that computed tomography has a crucial role for the preprocedural evaluation of TAVR candidates.

scholarly journals Adoption of Transcatheter Aortic Valve Implantation in Western Europe

2011 ◽  
Vol 9 (1) ◽  
pp. 37 ◽  
Author(s):  
Darren Mylotte ◽  
Ruben LJ Osnabrugge ◽  
Giuseppe Martucci ◽  
Ruediger Lange ◽  
Arie Pieter Kappetein ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Transcatheter Aortic Valve Implantation ◽  
Western Europe ◽  
Therapeutic Option ◽  
Surgical Aortic Valve Replacement ◽  
Surgical Risk ◽  
Transcatheter Aortic Valve ◽  
High Surgical Risk ◽  
Aortic Valve Implantation ◽  
Valve Implantation

Transcatheter aortic valve implantation (TAVI) is a novel therapeutic option for patients with severe symptomatic aortic stenosis (AS) at excessive or high surgical risk for conventional surgical aortic valve replacement. First commercialised in Europe in 2007, TAVI growth has been exponential among some Western European nations, though recent evidence suggests heterogeneous adoption of this new and expensive therapy. Herein, we review the evidence describing the utilisation of TAVI in Western Europe.

scholarly journals Positional Differences of the Mandibular Canal in Relation to Permanent Mandibular First Molars with Eruption Disturbances in Children

Children ◽  
2020 ◽  
Vol 7 (11) ◽  
pp. 206
Author(s):  
Eungyung Lee ◽  
Taesung Jeong ◽  
Jonghyun Shin
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Mandibular Canal ◽  
Normal Group ◽  
Cone Beam ◽  
Computed Tomography Imaging ◽  
Cross Sectional ◽  
Tomography Imaging ◽  
Inferior Margin ◽  
The Mean

Eruption disturbances in permanent mandibular first molars (PM1s) are uncommon. This retrospective study aimed to investigate differences in the position of the mandibular canal in relation to PM1s, with or without, eruption disturbances. Panoramic and cross-sectional views were reconstructed from cone-beam computed tomography imaging of children with PM1 eruption disturbances. Distances from the most inferior margin of the mandible to the center of the mandibular canal (M–C) and from the outer margin of the lingual cortex to the center of the mandibular canal (L–C) were measured for normally erupted PM1s (normal group) and for PM1s with eruption disturbances (ED group) and compared using independent t-tests. The mean M–C was significantly shorter in the ED group (4.86 ± 1.07 mm) than in the normal group (6.56 ± 1.06 mm) (p < 0.05). The mean L–C was also significantly shorter in the ED group (2.74 ± 0.74 mm) than in the normal group (3.09 ± 0.71 mm) (p < 0.05). This study demonstrated that the mandibular canal tended to be positioned more inferiorly in relation to PM1s with eruption disturbances than normally erupted PM1s in children. Clinicians should be aware of this positional deviation when managing children with PM1 eruption disturbances.

scholarly journals A New Automated Way to Measure Polyethylene Wear in THA Using a High Resolution CT Scanner: Method and Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Gerald Q. Maguire Jr. ◽  
Marilyn E. Noz ◽  
Henrik Olivecrona ◽  
Michael P. Zeleznik ◽  
Lars Weidenhielm
Keyword(s):  
Computed Tomography ◽  
Femoral Component ◽  
Polyethylene Wear ◽  
Human Interaction ◽  
Ct Scanner ◽  
Acetabular Cup ◽  
Computed Tomography Imaging ◽  
The Mean ◽  
Active Patients ◽  
Ct Volume

As the most advantageous total hip arthroplasty (THA) operation is the first, timely replacement of only the liner is socially and economically important because the utilization of THA is increasing as younger and more active patients are receiving implants and they are living longer. Automatic algorithms were developed to infer liner wear by estimating the separation between the acetabular cup and femoral component head given a computed tomography (CT) volume. Two series of CT volumes of a hip phantom were acquired with the femoral component head placed at 14 different positions relative to the acetabular cup. The mean and standard deviation (SD) of the diameter of the acetabular cup and femoral component head, in addition to the range of error in the expected wear values and the repeatability of all the measurements, were calculated. The algorithms resulted in a mean (±SD) for the diameter of the acetabular cup of 54.21 (±0.011) mm and for the femoral component head of 22.09 (±0.02) mm. The wear error was ±0.1 mm and the repeatability was 0.077 mm. This approach is applicable clinically as it utilizes readily available computed tomography imaging systems and requires only five minutes of human interaction.

Sign in / Sign up

Export Citation Format

Share Document