Software output from semi-automated planimetry can underestimate intracerebral haemorrhage and peri-haematomal oedema volumes by up to 41 %

Wu, Teddy Y; Sobowale, Oluwaseun; Hurford, Robert; Sharma, Gagan; Christensen, Søren; Yassi, Nawaf; Tatlısumak, Turgut; Desmond, Patricia; Campbell, Bruce; Davis, Stephen M.; Parry‐Jones, Adrian; Meretoja, Atte

doi:10.1007/s00234-016-1720-z

Cited by 23 publications

(19 citation statements)

References 26 publications

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“…Hematoma and edema volumes were segmented using semiautomated planimetry . Briefly, de‐identified computed tomography images were loaded on Analyze 12.0 (Biomedical Imaging Resource; Mayo Clinic).…”

Section: Methodsmentioning

confidence: 99%

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Persistent Hyperglycemia Is Associated With Increased Mortality After Intracerebral Hemorrhage

Putaala

Sharma

et al. 2017

JAHA

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BackgroundHyperglycemia may be associated with worse outcome after intracerebral hemorrhage (ICH). We assessed the association of early glycemic trajectory on ICH mortality and edema growth.Methods and ResultsWe included patients from the Helsinki ICH study with glucose measurements at least once between both 0 to 24 and 24 to 72 hours from onset. Hyperglycemia was defined as blood glucose ≥8 mmol/L (144 mg/dL) based on the local threshold for treatment. Glycemic trajectory was defined on maximum values 0 to 24 and 24 to 72 hours after ICH: (1) persistent normoglycemia in both epochs; (2) late hyperglycemia (only between 24 and 72 hours); (3) early hyperglycemia (only before 24 hours); and (4) persistent hyperglycemia in both epochs. Logistic regression with known predictors of outcome estimated the association of glycemic trajectory and 6‐month mortality. A generalized linear model assessed the association of glycemic trajectory and interpolated 72‐hour edema extension distance. A total of 576 patients met eligibility criteria, of whom 214 (37.2%) had persistent normoglycemia, 44 (7.6%) late hyperglycemia, 151 (26.2%) early hyperglycemia, and 167 (29.0%) persistent hyperglycemia. Six‐month mortality was higher in the persistent (51.1%) and early (26.3%) hyperglycemia groups than the normoglycemia (19.0%) and late hyperglycemia (3.6%) groups. Persistent hyperglycemia was associated with 6‐month mortality (odds ratio 3.675, 95% CI 1.989–6.792; P<0.001). Both univariate (P=0.426) and multivariable (P=0.493) generalized linear model analyses showed no association between glycemic trajectory and 72‐hour edema extension distance.ConclusionEarly hyperglycemia after ICH is harmful if it is persistent. Strategies to achieve glycemic control after ICH may influence patient outcome and need to be assessed in clinical trials.

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Section: Methodsmentioning

confidence: 99%

“…performed segmentation on all scans. The segmented regions of interest were subjected to in‐house processing to derive volumes that take into account gantry tilt and true slice thickness as reported in detail elsewhere …”

Section: Methodsmentioning

confidence: 99%

Persistent Hyperglycemia Is Associated With Increased Mortality After Intracerebral Hemorrhage

Putaala

Sharma

et al. 2017

JAHA

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“…Hematoma volume was calculated using semiautomated planimetry 15 using Analyze 12.0 (Biomedical Imaging Resource; Mayo Clinic). Hemorrhage was classified lobar if the ICH involved cortical surface or the juxtacortical region of the frontal, parietal, temporal, or occipital lobes; deep when located within the deep structures (caudate, lentiform, thalamus, internal, or external capsule).…”

Section: March 2017mentioning

confidence: 99%

Simultaneous Multiple Intracerebral Hemorrhages (SMICH)

Wu¹,

Yassi²,

Shah³

et al. 2017

Stroke

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“…ICH volumes were measured by semi-automatic planimetry using Analyze 12.0 software. 14,15 The HICHS registry combines data retrieved from province-wide electronic medical records and mortality data from Statistics Finland. 7 All patients had been evaluated by a neurologist on admission.…”

Section: Materials S and Me Thodsmentioning

confidence: 99%

Occipital intracerebral hemorrhage—clinical characteristics, outcome, and post‐ICH epilepsy

et al. 2020

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The incidence of intracerebral hemorrhage (ICH) is approximately 25/100 000/y, 1 contributing to a cumulative lifetime risk of 8.2%. 2 Although the acute and 1-year mortality of ICH reaches 40% and 50%, respectively, 1,3 lobar location of bleeding seems to accompany a better prognosis. 4 Other factors associated with outcome include hematoma volume, severity, age, infratentorial origin, presence of intraventricular hemorrhage (IVH), and etiology. 5-8 In ischemic stroke, the location of the lesion impacts the severity, 9 outcome, 9 and risk of post-stroke epilepsy. 10 However, similar topological data on hemorrhage are scarce. In one study, isolated occipital hemorrhages were rare (4.6% of lobar ICH) and had better outcome than other lobar hemorrhages, 11 whereas another study did not find any occipital areas associating with lower acute mortality. 12 This retrospective observational registry-based study identifies occipital hemorrhages among consecutive spontaneous ICH patients treated in a single center. Our goal was to investigate the effect of

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Software output from semi-automated planimetry can underestimate intracerebral haemorrhage and peri-haematomal oedema volumes by up to 41 %

Abstract: Our results demonstrate that the method used to determine voxel depth can influence the final volume output markedly. Results of clinical and collaborative studies need to be considered in the context of these methodological differences.

Cited by 23 publications

References 26 publications

Persistent Hyperglycemia Is Associated With Increased Mortality After Intracerebral Hemorrhage

Persistent Hyperglycemia Is Associated With Increased Mortality After Intracerebral Hemorrhage

Simultaneous Multiple Intracerebral Hemorrhages (SMICH)

Occipital intracerebral hemorrhage—clinical characteristics, outcome, and post‐ICH epilepsy

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