scholarly journals Comparison of the Ellipsoid Methods and the Cavalieri Method, for Calculating Hematoma Volume in Computed Tomography by non-Specialist

2021 ◽  
Author(s):  
Ahmet Tolgay AKINCI ◽  
Gizem ÖZDEMİR
Keyword(s):  
Computed Tomography ◽  
Hematoma Volume ◽  
Ellipsoid Methods

scholarly journals Jugular Venous Reflux Is Associated with Perihematomal Edema after Intracerebral Hemorrhage

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Hao Feng ◽  
Hongxia Zhang ◽  
Wen He ◽  
Jian Zhou ◽  
Xingquan Zhao
Keyword(s):  
Computed Tomography ◽  
Intracerebral Hemorrhage ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Venous Reflux ◽  
Hematoma Volume ◽  
Brain Computed Tomography ◽  
Perihematomal Edema ◽  
Jugular Venous Reflux

The purpose of this study was to determine whether jugular venous reflux (JVR) is associated with perihematomal edema (PHE) in individuals with intracerebral hemorrhage (ICH). Patients with spontaneous supratentorial ICH within 72 h of symptom onset were enrolled. Baseline brain computed tomography (CT) scan was performed, with a follow-up CT examination at 12 ± 3 days after onset. Jugular venous color Doppler ultrasound was performed at 12 ± 3 days after onset to examine the JVR status. A total of 65 patients with ICH were enrolled. In logistic regression analysis, absolute PHE volume was significantly associated with JVR (OR, 5.46; 95% CI, 1.04–28.63; p=0.044) and baseline hematoma volume (OR, 1.14; 95% CI, 1.03–1.26; p=0.009) within 72 h of onset. It was also correlated with JVR (OR, 15.32; 95% CI, 2.52–92.99; p=0.003) and baseline hematoma volume (OR, 1.14; 95% CI, 1.04–1.24; p=0.006) at 12 ± 3 days after onset. In a similar manner, relative PHE volume was significantly associated with JVR (OR, 14.85; 95% CI, 3.28–67.17; p<0.001) within 72 h of onset and at 12 ± 3 days after onset (OR, 5.87; 95% CI, 1.94–17.77; p=0.002). JVR is associated with both absolute and relative PHE volumes after ICH.

scholarly journals Quantification of Subarachnoid Hemorrhage by Three-Dimensional Computed Tomography: Correlation Between Hematoma Volume and Symptomatic Vasospasm

2011 ◽  
Vol 51 (3) ◽  
pp. 187-194 ◽  
Author(s):  
Taku SATO ◽  
Tatsuya SASAKI ◽  
Jun SAKUMA ◽  
Tadashi WATANABE ◽  
Masahiro ICHIKAWA ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Subarachnoid Hemorrhage ◽  
Three Dimensional ◽  
Hematoma Volume ◽  
Symptomatic Vasospasm

Computed Tomography and Outcome in Moderate and Severe Traumatic Brain Injury: Hematoma Volume and Midline Shift Revisited

2011 ◽  
Vol 28 (2) ◽  
pp. 203-215 ◽  
Author(s):  
Bram Jacobs ◽  
Tjemme Beems ◽  
Ton M. van der Vliet ◽  
Ramon R. Diaz-Arrastia ◽  
George F. Borm ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Severe Traumatic Brain Injury ◽  
Midline Shift ◽  
Hematoma Volume

Risk Factors for Chronic Subdural Hematoma Recurrence Identified Using Quantitative Computed Tomography Analysis of Hematoma Volume and Density

2017 ◽  
Vol 99 ◽  
pp. 465-470 ◽  
Author(s):  
Pantelis Stavrinou ◽  
Sotirios Katsigiannis ◽  
Jong Hun Lee ◽  
Christina Hamisch ◽  
Boris Krischek ◽  
...  
Keyword(s):  
Risk Factors ◽  
Computed Tomography ◽  
Subdural Hematoma ◽  
Quantitative Computed Tomography ◽  
Chronic Subdural Hematoma ◽  
Hematoma Volume ◽  
Tomography Analysis

scholarly journals Risk Factors for Atorvastatin as a Monotherapy for Chronic Subdural Hematoma: A Retrospective Multifactor Analysis

2021 ◽  
Vol 13 ◽  
Author(s):  
Xinjie Zhang ◽  
Dong Wang ◽  
Ye Tian ◽  
Huijie Wei ◽  
Xuanhui Liu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Computed Tomography ◽  
Subdural Hematoma ◽  
Therapeutic Efficacy ◽  
Chronic Subdural Hematoma ◽  
High Density ◽  
Low Density ◽  
Basal Cistern ◽  
Hematoma Volume ◽  
Cell Counts

Chronic subdural hematoma (CSDH) is a common form of intracranial hemorrhage in the aging population. We aimed to investigate the predictive factors for atorvastatin efficacy as a monotherapy for moderate CSDH. We retrospectively reviewed the medical records of patients who were diagnosed with moderate CSDH and received atorvastatin monotherapy between February 5, 2014, and November 7, 2015, in multiple neurosurgical departments. Univariate, multivariate and receiver operating characteristic curve analyses were performed to identify the potential significant factors indicative of the good therapeutic efficacy or poor therapeutic efficacy of atorvastatin for mild CSDH, such as age, sex, history of injury, Markwalder grading scale–Glasgow Coma Scale (MGS-GCS), Activities of Daily Life-the Barthel Index scale (ADL-BI), American Society of Anesthesiologists Physical Status classification system (ASA-PS), blood cell counts, serum levels and computed tomography findings. A total of 89 patients (75 men and 14 women) aged 24–88 years (mean age 61.95 ± 15.30 years) were followed-up for 24 weeks. Computed tomography findings at admission showed mixed-density hematoma in 22 patients, isodense hematoma in 13 patients, high-density hematoma in 26 patients, and low-density hematoma in 28 patients. In total, 3, 80, and 6 patients had MGS-GCS grades of 0, 1, and 2, respectively. The efficacy rate at 6 months was 87.6% (78/89). Eleven patients were switched to surgery due to a worsened neurological condition, of whom 8, 1, 1, and 1 had high-density, low-density, isodense and mixed-density hematomas, respectively. These patients were switched to surgery over a range of 2–27 days, with a median interval of 12 days after the medication treatment. Univariate and multivariate analyses, confirmed by ROC curves, revealed that high-density hematoma, basal cistern compression, and hematoma volume to be independent risk factors for the efficacy of atorvastatin monotherapy in patients with moderate CSDH. Atorvastatin is an effective monotherapy for the treatment of mild CSDH. High-density hematoma, basal cistern compression, and hematoma volume are independent predictors of the efficacy of atorvastatin as a non-surgical treatment. The results suggested that ADL-BI was more sensitive than the MGS-GCS and ASA-PS for determining patient outcomes in our moderate CSDH cohort.

X-ray microtomography

1988 ◽  
Vol 46 ◽  
pp. 998-999
Author(s):  
H.W. Deckman ◽  
B.F. Flannery ◽  
J.H. Dunsmuir ◽  
K.D' Amico
Keyword(s):  
Computed Tomography ◽  
Internal Structure ◽  
Imaging Technique ◽  
Three Dimensional ◽  
Tissue Structure ◽  
Individual Element ◽  
X Ray ◽  
Non Invasive ◽  
Panoramic Imaging ◽  
Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

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