Time series analysis of the in-hospital diagnostic process in suspected pulmonary embolism evaluated by computed tomography: An explorative study
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Time series analysis of the in-hospital diagnostic process in suspected pulmonary embolism evaluated by computed tomography: An explorative study. / Koehler, Daniel; Ozga, Ann-Kathrin; Molwitz, Isabel; Görich, Hanna Maria; Keller, Sarah; Mayer-Runge, Ulrich; Adam, Gerhard; Yamamura, Jin.
in: EUR J RADIOL, Jahrgang 140, 109758, 2021.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Time series analysis of the in-hospital diagnostic process in suspected pulmonary embolism evaluated by computed tomography: An explorative study
AU - Koehler, Daniel
AU - Ozga, Ann-Kathrin
AU - Molwitz, Isabel
AU - Görich, Hanna Maria
AU - Keller, Sarah
AU - Mayer-Runge, Ulrich
AU - Adam, Gerhard
AU - Yamamura, Jin
PY - 2021
Y1 - 2021
N2 - PurposeThis retrospective study aims to analyze the distribution of demand and the duration of the diagnostic workup of suspected pulmonary embolism (PE) using computed tomography pulmonary angiography (CTPA).MethodsTime data from physical examination to report creation were identified for each CTPA in 2013 and 2018 at a tertiary hospital. Multivariable multinomial logistic and linear regression models were used to evaluate differences between 3 time intervals (I1: 6am-2pm, I2: 2pm-10pm, I3: 10pm-6am). A cosinor model was applied to analyze the amount of CTPA per hour.ResultsThe relative demand for CTPA from the emergency room was lower in l1 compared to l2 and l3 (I1/I2: odds ratio (OR) 0.84, 95 % confidence interval (CI) 0.78−0.91; I1/I3: OR 0.80, 95 % CI 0.72−0.89; peak 4:23 pm). Requests for in-patients displayed a tendency towards I1 (I1/2: OR 1.15, 95 % CI 1.06–1.24; l1/l3: OR 1.19, 95 % CI 1.07–1.33; peak 1:54 pm). The time from CTPA request to study was shorter in I3 compared to I1 and I2 in 2013 (I1/I3: ratio 5.23, 95 % CI 3.38–8.10; I2/I3: ratio 3.50, 95 % CI 2.24–5.45) and 2018 (I1/I3: ratio 2.27, 95 % CI 1.60–3.22; I2/I3: ratio 2.11, 95 % CI 1.50–2.97). This applied similarly to fatal cases (I1/I3: ratio 2.91, 95 % CI 1.78–4.75; I2/I3: ratio 2.45, 95 % CI1.52−3.95).ConclusionsThe temporal distribution of demand for CTPA depends on the sector of patient care and the processing time differs substantially during the day. Time series analysis can reveal such coherences and may help to optimize workflows in radiology departments.
AB - PurposeThis retrospective study aims to analyze the distribution of demand and the duration of the diagnostic workup of suspected pulmonary embolism (PE) using computed tomography pulmonary angiography (CTPA).MethodsTime data from physical examination to report creation were identified for each CTPA in 2013 and 2018 at a tertiary hospital. Multivariable multinomial logistic and linear regression models were used to evaluate differences between 3 time intervals (I1: 6am-2pm, I2: 2pm-10pm, I3: 10pm-6am). A cosinor model was applied to analyze the amount of CTPA per hour.ResultsThe relative demand for CTPA from the emergency room was lower in l1 compared to l2 and l3 (I1/I2: odds ratio (OR) 0.84, 95 % confidence interval (CI) 0.78−0.91; I1/I3: OR 0.80, 95 % CI 0.72−0.89; peak 4:23 pm). Requests for in-patients displayed a tendency towards I1 (I1/2: OR 1.15, 95 % CI 1.06–1.24; l1/l3: OR 1.19, 95 % CI 1.07–1.33; peak 1:54 pm). The time from CTPA request to study was shorter in I3 compared to I1 and I2 in 2013 (I1/I3: ratio 5.23, 95 % CI 3.38–8.10; I2/I3: ratio 3.50, 95 % CI 2.24–5.45) and 2018 (I1/I3: ratio 2.27, 95 % CI 1.60–3.22; I2/I3: ratio 2.11, 95 % CI 1.50–2.97). This applied similarly to fatal cases (I1/I3: ratio 2.91, 95 % CI 1.78–4.75; I2/I3: ratio 2.45, 95 % CI1.52−3.95).ConclusionsThe temporal distribution of demand for CTPA depends on the sector of patient care and the processing time differs substantially during the day. Time series analysis can reveal such coherences and may help to optimize workflows in radiology departments.
KW - Pulmonary embolism
KW - Computed tomography angiography
KW - Workflow
KW - Quality control
KW - Radiology
U2 - 10.1016/j.ejrad.2021.109758
DO - 10.1016/j.ejrad.2021.109758
M3 - SCORING: Journal article
VL - 140
JO - EUR J RADIOL
JF - EUR J RADIOL
SN - 0720-048X
M1 - 109758
ER -