Publications by authors named "Sara Aniki Christner"
Rationale And Objectives: Suspicious lesions detected in multiparametric breast MRI can be further analyzed with second-look ultrasound (SLUS) and/or mammography. This study aims to assess the value of second-look imaging in selecting the appropriate biopsy method for different lesion characteristics.
Materials And Methods: Between January 2021 and December 2023, 212 women underwent contrast-enhanced multiparametric breast MRI at 3 Tesla.
This study investigated whether virtual monoenergetic images (VMIs) and iodine mapping based on dual-energy CT (DECT) provide advantages in the assessment of endometrial cancer. A dual-source DECT was performed for primary staging of histologically proven endometrioid adenocarcinoma in 21 women (66.8 ± 12.
View Article and Find Full Text PDFIntroduction: With increasing spatial resolution, diffusion-weighted imaging (DWI) may be suitable for morphologic lesion characterization in breast MRI - an area that has traditionally been occupied by dynamic contrast-enhanced imaging (DCE). This investigation compared DWI with b values of 800 and 1600 s/mm to DCE for lesion morphology assessment in high-resolution breast MRI at 3 Tesla.
Material And Methods: Multiparametric breast MRI was performed in 91 patients with 93 histopathologically proven lesions (31 benign, 62 malignant).
Article Synopsis
- - The study investigated a deep learning-based imaging method to speed up diffusion-weighted imaging (DWI) for breast MRI, targeting better spatial resolution and reduced scan times.
- - Involving 133 women, the research found that the deep learning techniques (DL and SRDL) could cut scan times by 39%, with SRDL yielding the highest quality ratings among images assessed by radiologists.
- - Although standard DWI provided a better signal-to-noise ratio, both deep learning methods showed promising structural similarity and slight increases in apparent diffusion coefficient values compared to standard DWI.
Objectives: Digital breast tomosynthesis (DBT) can provide additional information over mammography, albeit at the cost of prolonged reading time. This study retrospectively investigated the impact of reading enhanced synthetic 6 mm slabs instead of standard 1 mm slices on interpretation time and readers performance in a diagnostic assessment centre.
Methods: Three radiologists (R1-3; 6/4/2 years of breast imaging experience) reviewed 111 diagnostic DBT examinations.
Rationale And Objectives: In breast MRI with diffusion-weighted imaging (DWI), fat suppression is essential for eliminating the dominant lipid signal. This investigation evaluates a combined water-excitation-spectral-fatsat method (WEXfs) versus standard spectral attenuated inversion recovery (SPAIR) in high-resolution 3-Tesla breast MRI.
Materials And Methods: Multiparametric breast MRI with 2 echo-planar DWI sequences was performed in 83 patients (50.
Objectives: For detection of urinary calculi, unenhanced low-dose computed tomography is the method of choice, outperforming radiography and ultrasound. This retrospective monocentric study aims to compare a clinically established, dedicated low-dose imaging protocol for detection of urinary calculi with an ultra-low-dose protocol employing tin prefiltration at a standardized tube voltage of 100 kVp.
Methods: Two study arms included a total of 510 cases.