Hounsfield Units
Hounsfield units from unenhanced 18F-FDG-PET/CT are useful in evaluating supradiaphragmatic lymph nodes in children and adolescents with classical Hodgkin’s lymphoma
... in Hounsfield units (HU), and the lymph node-to-muscle attenuation ratio (LN/M) in computed tomography (CT) unenhanced imaging, rou- tinely performed with 18F-fluorodeoxyglucose positron emission tomography ...
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Comparison of Tissue Density in Hounsfield Units in Computed Tomography and Cone Beam Computed Tomography
... in Hounsfield units (HUs) in CBCT and CT scans of different tissue phantoms with two different thicknesses, two different image acquisition settings and in three locations in the ...
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Method for Converting Cone Beam CT Values into Hounsfield Units for Radiation Treatment Planning
... Cone-beam CT (CBCT) images acquired during radiation treatment can be used to recalculate the dose distribution as well as to confirm the treatment location. However, it is difficult to obtain the electron densities ...
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<p>Ultrasound Sonography to Detect Focal Osteoporotic Jawbone Marrow Defects: Clinical Comparative Study with Corresponding Hounsfield Units and RANTES/CCL5 Expression</p>
... Patients and Methods: TAU-n consists of a two-part handpiece with an extraoral ultra- sound transmitter and an intraoral ultrasound receiver. The TAU-n computer display shows the different jawbone densities with ...
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Early Quantification of Hematoma Hounsfield Units on Noncontrast CT in Acute Intraventricular Hemorrhage Predicts Ventricular Clearance after Intraventricular Thrombolysis
... RESULTS: Median intraventricular hemorrhage volume on admission for patients treated with intraventricular rtPA was 31.9 mL (inter- quartile range, 34.1 mL), and it decreased to 4.9 mL (interquartile range, 14.5 mL) ...
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Quantification of Thrombus Hounsfield Units on Noncontrast CT Predicts Stroke Subtype and Early Recanalization after Intravenous Recombinant Tissue Plasminogen Activator
... MATERIALS AND METHODS: NCCT scans and CTA were performed on patients with MCA acute stroke within 4.5 hours of symptom onset. Demographics, stroke severity, vessel hyperattenuation, occlusion site, thrombus length, and ...
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Verbeterde bepaling van de mate van spiervervetting door onderzoek naar de invloed van jodiumhoudend contrastmiddel op (Dual Energy) CT scans met als doel het verlagen van het risico op postoperatieve complicaties bij patiënten met darmkanker
... Aanleiding: In Nederland krijgt ruim dertig procent van de 10.000 patiënten die jaarlijks een operatie ondergaat voor colorectale kanker te maken met postoperatieve complicaties. Deze postoperatieve complicaties worden ...
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3-phase dual-energy CT scan as a feasible salvage imaging modality for the identification of non-localizing parathyroid adenomas: a prospective study
... Since little is known about the spectral characteristics of PAs, a post-hoc analysis of spectral curves of a subset of PAs [13] was performed and compared to lymph nodes in order to evaluate for potential differ- ences ...
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Spirometric assessment of emphysema presence and severity as measured by quantitative CT and CT-based radiomics in COPD
... Hounsfield Units at inspiratory CT scan; %pLDA: Percentage of persistent low density area; AWTPi10: Airway wall thickness at an internal perimeter of 10 mm; BMI: Body mass index; COPD: C[r] ...
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The impact of using BARCIST 1.0 criteria on quantification of BAT volume and activity in three independent cohorts of adults
... (FDG) PET-CT using several quantification criteria. Uniform criteria for data analysis became available recently (BARCIST 1.0). We compared BAT volume and activity following BARCIST 1.0 criteria against the most commonly ...
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How do stone attenuation and skin-to-stone distance in computed tomography influence the performance of shock wave lithotripsy in ureteral stone disease?
... HU: Hounsfield Units; SWL: Shock wave lithotripsy; BMI: Body mass index; AUA: American Urological Association; EAU: European Association of Urology; SFR: Stone-free rate; URS: Ureterorenoscopy; NCCT: ...
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Differences in bone mineral density of trajectory between lumbar cortical and traditional pedicle screws
... Computed tomography (CT) has become increasingly important in the field of orthopedic research in estimat- ing bone strength, and its application in diagnosing osteoporosis and assessing fracture risks is being investi- ...
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Clinical utility of computed tomography Hounsfield characterization for percutaneous nephrolithotomy: a cross-sectional study
... [1]. Hounsfield Units (HU) indicate the hardness of renal calculi and identify high density stones to be excluded from shockwave lithotripsy (SWL) ...as Hounsfield Density (HUD), has been proposed to ...
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Grading of cerebral infarction using CT Hounsfield unit to report the Hounsfield unit in acute, Subacute and chronic stroke
... acute stroke due to its common availability, speed, low cost and accuracy in detecting hemorrhage and cerebral infarct. CT has the ability to quantify the beam attenuation, hence the measurements are expressed in ...
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RECIST and CHOI criteria in the evaluation of tumor response in patients with metastatic colorectal cancer treated with regorafenib, a prospective multicenter study
... in Hounsfield units (HU) were obtained in free- hand region of interest (ROI) drawn about 1 mm inside the lesion boundaries on the CECT section whose lar- gest diameter had been ...
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A new functional method to choose the target lobe for lung volume reduction in emphysema – comparison with the conventional densitometric method
... Objectives: To determine lobar vital capacity/lobar total capacity (LVC/LTC) as a functional parameter for lobar air trapping using on an inspiratory and expiratory CT scan. To compare lobar selection by LVC/LTC with the ...
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Lung anatomy, energy load, and ventilator-induced lung injury
... ANOVA: analysis of variance; ARDS: acute respiratory distress syndrome; CT: computed tomography; FRC: functional residual capacity; HU: Hounsfield units; PEEP: positive end-expiratory pr[r] ...
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Reduced Dose with Maintained Image Quality Utilizing 100 kVp Carotid CT Angiography
... Objective image quality was evaluated by measuring signal intensity SI in Hounsfield units HUs of regions of interest ROIs along the right and left carotid systems at consistent anatomic[r] ...
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Investigation of bone quality of the first and second sacral segments amongst trauma patients: concerns about iliosacral screw fixation
... utilized Hounsfield units, a standardized computed tomography attenuation coefficient, which has been shown to correlate with both the DEXA and com- pressive strengths of osseous ...
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