Publications by S Shnayien

Publications by authors named "S Shnayien"

Prostate Cancer Prostatic Dis

September 2023

MRI is crucial for detecting prostate lesions before a targeted biopsy, but it's still unclear how many biopsy cores from the lesion are necessary for an accurate diagnosis.
A study analyzed data from 451 patients who underwent MRI-targeted biopsies, focusing on the number of cores needed and developing a prediction model for diagnosis accuracy.
The findings revealed that 97% of relevant diagnoses were made after obtaining three biopsy cores, while a prediction model achieved an accuracy of 79%, suggesting that collecting at least three cores is essential for effective identification of significant lesions.

Sci Rep

September 2022

Patients with Marfan syndrome are at risk of serious complications like aortic dissection and require regular monitoring with imaging techniques such as CT and echocardiography.
This study compares aortic measurements from whole-heart CT and transthoracic echocardiography (TTE) in 95 patients, assessing their effectiveness for diagnosis and follow-up over two years.
Results showed that while both methods correlate well, TTE tends to overestimate aortic diameters more frequently, suggesting that whole-heart CT may be a better option for accurate monitoring of aortic enlargement.

Rofo

February 2023

The study compares two CT imaging protocols (non-ECG-gated vs. ECG-gated) before transcatheter aortic valve procedures in patients with different heart rhythms.
Both protocols showed similar subjective image quality, but the non-ECG-gated protocol had higher image noise and lower SNR, CNR, and radiation dose.
The findings suggest that the high-pitch non-ECG-gated protocol is a viable alternative for accurate imaging in TAVI/TAVR planning despite its disadvantages.

J Clin Med

April 2022

Pancreatic cancer is a major cause of death, and this study investigates how body composition measured through CT scans can predict survival rates using AI techniques.
The research included 103 patients and highlighted that surgical treatment significantly improves 1-year, 2-year, and 3-year survival rates, while sarcopenia (muscle loss) and visceral fat also play critical roles in determining survival outcomes.
The findings showed that sarcopenia negatively impacts survival more in surgical patients compared to nonsurgical ones, indicating that assessing muscle mass and fat distribution can help guide treatment decisions and predict patient outcomes.

Rofo

August 2022

The study investigates the differences in inter-reader variability when using the PI-RADS v2 and v2.1 for classifying prostate lesions through multiparametric MRI.
Results show that PI-RADS v2.1 has better agreement among radiologists in the peripheral zone but lower in the transition zone.
Combining scores 1 and 2 in PI-RADS v2.1 led to nearly perfect agreement in the peripheral zone and substantial agreement in the transition zone, suggesting a need for clearer definitions in these scoring categories.