Elastography: A New Ultrasound Technique in Nodular Thyroid Pathology

A complete ultrasound examination (cUS) of the liver was performed on 172 female sheep and compared to the performance of a fast-focused ultrasound technique to diagnose echinococcal cysts. The scanned area was divided in: HYP (right hypocondrium), zone (Z)1 from HYP to the 11th intercostal space (IS), Z2 (10th–8th IS) and Z3 (7th–5th IS). Contiguous scans were also examined (HYP + Z1, Z1 + Z2, Z2 + Z3). Furthermore, during the procedures, the sheep were divided into three groups according to the body weight: Group (G) 1 (lighter), G2 (medium), and G3 (heavier). Finally, diagnostic outcomes were compared with necropsy findings. cUS obtained the highest values of sensitivity (Se) (91%), Specificity (Sp) (80%), and positive-zones (124/138, 90%), as compared to the other scans. cUS was also characterized by high values of Se and Sp and was able to identify a great number of positive-zones, when sheep were divided by body-weight groups. Similar performances were obtained in G1 by HYP (Se: 91%–Sp: 82%; 18/20, 90% of positive-zones) and HYP + Z1 scans (Se: 91%–Sp: 82; 90% of positive-zones, 18/20). Thus, in lighter breeds, the examination of HYP and HYP + Z1 scan windows could be considered reliable techniques for identifying the infected animals, while in heavier sheep the cUS still represents the best option.

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OP22.03: First trimester diagnostic accuracy of two-dimensional ultrasound technique in congenital heart diseases and great arteries anomalies

Ultrasound in Obstetrics and Gynecology ◽

10.1002/uog.19596 ◽

2018 ◽

Vol 52 ◽

pp. 131-132 ◽

Cited By ~ 1

Author(s):

S. Tudorache ◽

D.G. Iliescu ◽

M. Cara ◽

R. Dragusin ◽

M. Florea ◽

...

Keyword(s):

Diagnostic Accuracy ◽

Congenital Heart ◽

Heart Diseases ◽

First Trimester ◽

Congenital Heart Diseases ◽

Two Dimensional ◽

Ultrasound Technique

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OC13.06: Maternal carotid remodeling and arterial stiffness in normal late-gestational pregnancy as assessed by radio-frequency ultrasound technique

Ultrasound in Obstetrics and Gynecology ◽

10.1002/uog.12655 ◽

2013 ◽

Vol 42 (s1) ◽

pp. 26-26

Author(s):

L. Yuan ◽

Y. Duan ◽

D. Xue ◽

T. Cao ◽

N. Zhou

Keyword(s):

Arterial Stiffness ◽

Radio Frequency ◽

Ultrasound Technique ◽

Frequency Ultrasound

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Determinants of short-term variation in arterial flow-mediated dilatation in healthy young men

Clinical Science ◽

10.1042/cs20050333 ◽

2006 ◽

Vol 110 (4) ◽

pp. 475-482 ◽

Cited By ~ 28

Author(s):

Mikko J. Järvisalo ◽

Laura Jartti ◽

Jukka Marniemi ◽

Tapani Rönnemaa ◽

Jorma S. A. Viikari ◽

...

Keyword(s):

Endothelial Function ◽

Brachial Artery ◽

Serum Insulin ◽

Circadian Variation ◽

Low Fat ◽

Ultrasound Technique ◽

Brachial Artery Diameter ◽

Flow Mediated Dilatation ◽

Hourly Variation ◽

Fat Meal

Brachial artery FMD (flow-mediated dilatation) is widely used as a marker of systemic arterial endothelial function. FMD, however, shows considerable 25% day-to-day variation that hinders its clinical use. The reasons for this variability are poorly characterized. Therefore the present study was designed to clarify factors responsible for the hourly variation in endothelial function, including consuming a low-fat meal and circadian rhythms in endogenous hormonal levels. Brachial artery FMD, along with serum glucose, triacylglycerols (triglycerides) and levels of several hormones were measured six times per day on two separate days 1 week apart. On one day, the subjects (healthy males: n=12, mean age, 24 years) ate a light breakfast and a standardized lunch (23.5% fat, 48.7% carbohydrate and 27.8% protein). On the other day, they had a similar breakfast after which they fasted. Postprandial FMD values (both after breakfast and after lunch) were similar to baseline FMD. FMD showed a 28% hourly variation and 27% weekly variation. Variation in plasma levels of insulin (P=0.02) associated negatively and DHPG (3,4-dihydroxyphenylglycol) (P=0.001), a marker of sympathetic nervous activation, associated positively with variation in FMD. The effects of DHPG and insulin on FMD were independent of changes in baseline brachial artery diameter, although DHPG was also inversely associated with baseline diameter. Eating a regular low-fat meal does not have any measurable effects on brachial artery endothelial function. These data suggest that strict requirements for fasting conditions may be unnecessary when measuring peripheral endothelial function using the ultrasound technique. Circadian variation in serum insulin and sympathetic tone are physiological determinants of endothelial function.

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Objective Analysis Of Voice Quality In Patients With Thyroid Pathology

Clinical Otolaryngology ◽

10.1111/coa.13860 ◽

2021 ◽

Author(s):

NM León Gómez ◽

J Delgado Hernández ◽

J Luis Hernández ◽

JJ Artazkoz del Toro

Keyword(s):

Voice Quality ◽

Objective Analysis ◽

Thyroid Pathology

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Study of the Performance of Particles Based on Modified Starches Containing Potassium Sorbate and Incorporated into Biodegradable Films: Physicochemical Characterization and Antimicrobial Action

Chemistry ◽

10.3390/chemistry3020046 ◽

2021 ◽

Vol 3 (2) ◽

pp. 658-671

Author(s):

Paola Alzate ◽

Lía Gerschenson ◽

Silvia Flores

Keyword(s):

Control Systems ◽

Physicochemical Characterization ◽

Potassium Sorbate ◽

Biodegradable Films ◽

Ultrasound Technique ◽

Yellowness Index ◽

Solubility In Water ◽

Zygosaccharomyces Bailii ◽

Modified Starches ◽

Antimicrobial Performance

Ultrasound technique was used to produce native and acetylated cassava starch particles containing potassium sorbate (KS). In order to obtain an active packaging, films with addition of native starch particles containing KS (NKSPF) or added with acetylated starch particles containing KS (AKSPF) were formulated. As control systems, films without KS (CF) or added with KS that was not retained in particles (KSF), were produced. The NKSPF and AKSPF microstructure was consistent with composite materials. Tensile test revealed that CF and KSF were ductile and extensible (stress at break (σb) 2.8–2.5 MPa and strain at break (εb) 284–206%), while NKSPF and AKSPF were more resistant films with higher Young’s Modulus (148–477 MPa) and σb (3.6–17 MPa) but lower εb (40–11%). Moreover, NKSPF and AKSPF developed lower Yellowness Index (6.6–6.5) but higher opacity (19–23%) and solubility in water (31–35%) than KSF (9, 10.8% and 9%, respectively). It was observed that KSF and NKSPF moderately reduced the Zygosaccharomyces bailii growth while AKSPF showed the highest yeast inhibition, three Log-cycles, compared to CF. Additionally, FTIR spectroscopy revealed intensified interactions between KS and modified starch. It was concluded that starch sonication and acetylation were useful modifications to produce particles carrier of KS that improved the physical and antimicrobial performance of active films.

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Anxiety prevalence in coexisting alzheimer’s and thyroid pathology

European Psychiatry ◽

10.1016/s0924-9338(11)71869-7 ◽

2011 ◽

Vol 26 (S2) ◽

pp. 158-158

Author(s):

I. Ioancio ◽

R. Trascu ◽

I. Turcu ◽

L. Spiru

Keyword(s):

Cognitive Impairment ◽

Anxiety Disorder ◽

Alzheimer Disease ◽

Thyroid Function ◽

Thyroid Disease ◽

Clinical Manifestations ◽

Cognitive Disorders ◽

Thyroid Disorder ◽

Thyroid Pathology ◽

Normal Thyroid Function

BackgroundAlzheimer disease (AD) is one of the most common neurodegenerative disorders (prevalence boosts from 0.2% in patients aged 55-65 up to 27% in patients aged 85+ years. Clinical manifestations of psychiatric disorders accompanying hypo- and hyper-thyroid function can mimic cognitive impairment.ObjectivesOur study aimed at studying the relationship between thyroid pathology, anxiety disorder and Alzheimer disease (AD).MethodsOur longitudinal, prospective research followed 49 patients with thyroid disorders (aged 50-85 years, 93.5 females); 63.3% (n = 31) had coexisting dementia and thyroid disease while 36.7% (n = 18) were dementia-cleared (10 had mild cognitive impairment (MCI) and 8 - anxiety and/or depression); we cross/analyzed control (n = 18) and target (n = 31) groups.ResultsIn the target group, 64.5% (n = 20) had hypothyroidism, 22.6% (n = 7) had euthyroid function and 12.9% (n = 4) had hyperthyroidism. The prevalence of anxiety and depression was higher in the hypothyroidism + dementia group (55.5%, n = 11) than in the hypothyroidism-only group (44.4%, n = 8). Most controls (77.8%, n = 14) had hypothyroidism while 22% (n = 4) had normal thyroid function.ConclusionsAnxiety disorder had a greater prevalence both in the group with dementia + thyroid disease and in the MCI group. Hypothyroidism was the dominant thyroid disorder in both groups. The early diagnostic and treatment of thyroid disease is expected to improve prognosis and evolution of future cognitive disorders (MCI & AD).

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