Sarah Johnson

Dr. Sarah Johnson


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2025 in Radiology
Verified
Journal Article
Closed access
RBRajesh Bhayana
Rajesh Bhayana
OAOmar Alwahbi
Omar Alwahbi
ALAly Muhammad Ladak
Aly Muhammad Ladak
YDYangqing Deng
Yangqing Deng
ADAdriano Basso Dias
Adriano Basso Dias
SKSatheesh Krishna
Satheesh Krishna
Large language models enabled accurate automated clinical histories for oncologic imaging that were markedly more complete than original requisition histories and preferred by radiologists for image interpretation and safety.

30 March 2023 in Cancers
Verified
Journal Article
Open access
PDF file
CMClaudia Ortega Mogilevich
Claudia Ortega Mogilevich
YEYael Eshet
Yael Eshet
APAnca Prica
Anca Prica
RAReut Anconina
Reut Anconina
SJSarah Johnson
Sarah Johnson
PVPatrick Veit-Haibach
Patrick Veit-Haibach
Purpose: The aim of the study is to evaluate the prognostic value of a joint evaluation of PET and CT radiomics combined with standard clinical parameters in patients with HL. Methods: Overall, 88 patients (42 female and 46 male) with a median age of 43.3 (range 21–85 years) were included. Textural analysis of the PET/CT images was performed using freely available software (LIFE X). 65 radiomic features (RF) were evaluated. Univariate and multivariate models were used to determine the value of clinical characteristics and FDG PET/CT radiomics in outcome prediction. In addition, a binary logistic regression model was used to determine potential predictors for radiotherapy treatment and odds ratios (OR), with 95% confidence intervals (CI) reported. Features relevant to survival outcomes were assessed using Cox proportional hazards to calculate hazard ratios with 95% CI. Results: albumin (p = 0.034) + ALP (p = 0.028) + CT radiomic feature GLRLM GLNU mean (p = 0.012) (Area under the curve (AUC): 95% CI (86.9; 100.0)—Brier score: 3.9, 95% CI (0.1; 7.8) remained significant independent predictors for PFS outcome. PET-SHAPE Sphericity (p = 0.033); CT grey-level zone length matrix with high gray-level zone emphasis (GLZLM SZHGE mean (p = 0.028)); PARAMS XSpatial Resampling (p = 0.0091) as well as hemoglobin results (p = 0.016) remained as independent factors in the final model for a binary outcome as predictors of the need for radiotherapy (AUC = 0.79). Conclusion: We evaluated the value of baseline clinical parameters as well as combined PET and CT radiomics in HL patients for survival and the prediction of the need for radiotherapy treatment. We found that different combinations of all three factors/features were independently predictive of the here evaluated endpoints.

1 June 2023 in Radiology
Verified
Journal Article
Closed access
SJSarah Johnson
Sarah Johnson

1 June 2025 in Radiology
Verified
Journal Article
Closed access
SJSarah Johnson
Sarah Johnson