Publications by authors named "Shadie Majidi"
Purpose: The purpose of this study was to evaluate various morphologic features of axillary nodes on ultrasound (US) in predicting malignancy and estimate the incidence of malignancy in axillary nodes based on their imaging mode of detection.
Methods And Materials: A retrospective review of all percutaneous US-guided biopsies on axillary nodes performed at our institution between 1/1/2019-09/30/2021 was performed. Sonographic morphologic features of the biopsied node, imaging mode of detection and size of primary breast malignancy were correlated with malignancy.
Objectives: To evaluate the utilization of hematopathology resources within our enterprise on axillary lymph node core biopsy (AxLNCB) specimens, particularly those obtained in the context of breast cancer screening.
Methods: The utilization of hematopathology resources was determined for all AxLNCB specimens over a 30-month period from across our enterprise, and chart review was performed for select patient demographics and radiographic features. The AxLNCB cases with benign histology were reviewed for subtyping of histologic patterns.
Objective: Prior studies evaluating features of foci associated with malignancy have not been conclusive. This study evaluates foci that were deemed suspicious and assesses multiple imaging and clinical findings with the goal of identifying criteria that can increase diagnostic confidence when evaluating foci on breast MRI.
Methods: After Institutional Review Board approval, a retrospective chart review was performed to identify patients who underwent an image-guided biopsy of an enhancing focus.
Objective: Digital breast tomosynthesis (DBT) has significantly improved cancer detection capabilities through its identification of subtle findings often imperceptible on 2D digital mammography, particularly architectural distortion (AD). The purpose of this study was to analyze of suspicious AD detected on screening DBT to evaluate the incidence of malignancy and to determine other patient or imaging characteristics in these cases as possible predictors of malignancy.
Methods: This was an IRB approved retrospective analysis of subjects with AD detected on DBT screening mammography who were given a biopsy recommendation between January 1, 2016, and June 30, 2018.
Aims: Neoadjuvant chemotherapy (NAC) is frequently used for the treatment of breast cancer. We sought to analyse the clinical, morphological and immunohistochemical features of tumours from patients who did not achieve pathological complete response following NAC.
Methods And Results: We identified stage I-III post-NAC breast cancers from surgical resections (2000-2016) with evaluable residual invasive carcinoma [ypT1a(m) or greater and ≥15% tumour cellularity].
Objective: The purpose of this article is to evaluate and compare the artifacts caused by metal implants in breast MR images acquired with dual-echo Dixon and two conventional fat-suppression techniques.
Subjects And Methods: Two types of biopsy markers were embedded into a uniform fat-water emulsion. T1-weighted gradient-echo images were acquired on a clinical 3-T MRI scanner with three different fat-suppression techniques-conventional or quick fat saturation, spectrally selective adiabatic inversion recovery (SPAIR), and dual-echo Dixon-and the 3D volumes of artifacts were measured.
Purpose: To evaluate a magnetic resonance imaging (MRI) technique that integrates time-resolved angiography with stochastic trajectories (TWIST) view sharing and Dixon for a breast dynamic contrast-enhanced (DCE)-MRI application.
Materials And Methods: Simulation study: K-space data at six timepoints (1 pre-, 5 postcontrast) were generated by performing Fourier transform on a digital "phantom" with 3-9 mm enhancing lesions and three types of enhancement curves (persistent, plateau, washout). Images were reconstructed with and without TWIST.