High resolution compression elastography and color doppler sonography in characterization of breast fibroadenoma

2014 ◽  
Vol 58 (1) ◽  
pp. 115-125 ◽  
Author(s):  
D. Rjosk-Dendorfer ◽  
S. Reu ◽  
Z. Deak ◽  
H. Hetterich ◽  
T. Kolben ◽  
...  
Keyword(s):  
High Resolution ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography ◽  
Breast Fibroadenoma

Differential Diagnosis of Acute Scrotum in Childhood and Adolescence with High-Resolution Duplex Sonography

2021 ◽  
Vol 42 (01) ◽  
pp. 10-38
Author(s):  
Karl-Heinz Deeg
Keyword(s):  
Differential Diagnosis ◽  
High Resolution ◽  
Spermatic Cord ◽  
Testicular Torsion ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Resistance Index ◽  
Color Doppler Sonography ◽  
Spectral Doppler ◽  
Appendix Testis

AbstractAcute testicular pain in childhood can be caused by testicular torsion, torsion of the appendix testis, or epididymo-orchitis. Quick and reliable diagnosis is essential for determining the further course of action (surgery or conservative approach). The diagnostic tool of choice is high-resolution sonography with a linear transducer (> 10 MHz) combined with color and spectral Doppler sonography. The Doppler device settings should include a low pulse repetition frequency (< 4 cm/s), a low wall filter (< 100 Hz), and adequate gain. Comparison with the unaffected healthy testis is essential. The most important of the three diseases is torsion of the spermatic cord because it requires immediate surgical intervention and detorsion. The affected testis is enlarged and has an inhomogeneous echotexture with hypoechoic and hyperechoic areas as well as an associated hydrocele. In testicular torsion, color Doppler shows reduced or absent intratesticular vessels in comparison with the healthy contralateral testis. Spectral Doppler shows decreased flow velocities especially during diastole in intratesticular arteries and an increased resistance index. The investigation should always include imaging of the spermatic cord from the outer inguinal ring to the upper pole of the testis. In contrast to a normal finding, the vessels and the ductus deferens are not displayed as linear tubular structures but in form of a spiral twist. Ultrasound shows a target-like structure with multiple concentric rings. Color Doppler sonography shows the typical whirlpool sign. In torsion of the appendix testis, the appendix testis is enlarged in the groove between the testis and epididymis. The longitudinal diameter of the appendix testis can be greater than 5 mm. The echogenicity of the torsed appendage can vary between hypoechoic (acute torsion) and hyperechoic (prior torsion). An associated hydrocele of varying size is usually seen. Color Doppler sonography reveals a lack of perfusion of the enlarged appendix testis and increased vascularity of the testis and primarily the epididymis. Epididymo-orchitis is characterized by an enlarged epididymis and/or testis with inhomogeneous echogenicity (hypoechoic – hyperechoic). Color Doppler sonography shows increased vascularity in comparison with the unaffected testis. Spectral Doppler reveals increased diastolic flow velocities and a decreased resistance index. Idiopathic scrotal edema and an incarcerated inguinal hernia must be ruled out in the differential diagnosis.

High-Resolution and Color Doppler Sonography in the Evaluation of Skin Metastases

2003 ◽  
Vol 22 (10) ◽  
pp. 1017-1022 ◽  
Author(s):  
Francesco Giovagnorio ◽  
Cristina Valentini ◽  
Amalia Paonessa
Keyword(s):  
High Resolution ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography ◽  
Skin Metastases

Noninvasive Assessment of Renal Artery Stenosis

1995 ◽  
Vol 36 (3) ◽  
pp. 243-247 ◽  
Author(s):  
M. Strotzer ◽  
C. M. Fellner ◽  
A. Geissler ◽  
J. Gmeinwieser ◽  
S. M. Kohler ◽  
...  
Keyword(s):  
High Resolution ◽  
Arterial Hypertension ◽  
Renal Artery ◽  
Mr Angiography ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography ◽  
Screening Methods ◽  
Tof Mra ◽  
Noninvasive Assessment

The purpose of this study was to evaluate MR angiography (MRA) and color Doppler sonography as noninvasive screening methods in suspected renovascular hypertension. Fifty-five consecutive patients with arterial hypertension were examined prospectively using high resolution 3-D TOF MRA and color Doppler sonography. Intraarterial angiography was the standard of reference. Stenoses of 60% or more were regarded as significant. MR angiograms were evaluated by 3 independent observers who studied 110 main renal arteries. All 8 significant stenoses and 2 occlusions were correctly classified with MRA while one 60% stenosis was underestimated by color Doppler sonography. Mild stenoses were overestimated by MRA in 4 and by color Doppler sonography in 6 cases. A drawback of both methods was the large number of not evaluable arteries (6 in MRA, 11 in color Doppler sonography). These arteries were regarded as pathologic because stenosis could not be excluded. Due to this fact specificities of MRA and color Doppler sonography were 90% and 85% respectively. Accessory vessels were detected in 47% (8/17) by MRA and in 0% (0/17) by color Doppler sonography.

Role of 99mTc-Tetrofosmin delayed scintigraphy and color Doppler sonography in characterization of solitary thyroid nodules

2007 ◽  
Vol 28 (11) ◽  
pp. 847-851 ◽  
Author(s):  
Rajnish Sharma ◽  
Kanti Lal Chakravarty ◽  
Madhvi Tripathi ◽  
Aruna Kaushik ◽  
Pooja Bharti ◽  
...  
Keyword(s):  
Thyroid Nodules ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography ◽  
99Mtc Tetrofosmin

Radiological Evaluation of Thyroid Diseases using Gray Scale and Color Doppler Sonography

2016 ◽  
Vol 1 (4) ◽  
pp. 173-182
Author(s):  
Parveen Hans ◽  
Sagar Tyagi ◽  
Atul Mehrotra ◽  
Pradeep Parakh
Keyword(s):  
High Resolution ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Benign Lesion ◽  
Thyroid Diseases ◽  
Color Doppler Sonography ◽  
Thyroid Ultrasound ◽  
Radiological Evaluation ◽  
Gray Scale ◽  
Color Flow

ABSTRACT Introduction The thyroid gland is the largest of all endocrine glands and is the only one which is amenable to direct physical examination and high resolution real-time grayscale sonography because of its superficial location. High Resolution Ultrasonography (USG) with Color Doppler is used to assess the nature of the lesion according to its vascularity and also the hemodynamic characteristics of the gland. Thus, the combination of Gray scale Sonography and Color Flow Doppler provide huge benefits and help in increasing the sensitivity, specificity and accuracy in distinguishing benign and malignant thyroid nodules. Nearly 50% of patients with a clinically palpable solitary thyroid nodule have avoided surgery because of thyroid ultrasound. Aims and objectives The present study is aimed to determine the role of high resolution USG in the evaluation of lesions of the thyroid with Fine-needle aspiration cytology (FNAC) correlation and compare it with other studies. Materials and methods This is a prospective study carried out on 50 patients (44 female and 6 male) who attended ENT or Surgery outpatient department/inpatient department (OPD/IPD) and were referred to the Department of Radio-Diagnosis for high resolution USG of neck at Rohilkhand Medical College and Hospital, Bareilly, Uttar Pradesh, India. This study was conducted for a period of one year from March 2015 to February 2016. The ultrasound machine used was GE LOGIQ V5. Result and Conclusion Our present study consisted of 50 cases which were clinically suspected suffering from thyroid dysfunction. Thyroid ultrasound was very efficient in picking up lesions in all 50 cases in our study. In comparison, to other studies our study gave a similar picture in terms of benign lesions being much more common than malignant lesions. The most common benign lesion determined in our study was colloid goiter which was the most common benign lesion in many other studies. In comparison to other studies, we were able to detect malignant nodules with a better specificity. Chronic thyroiditis was also very efficiently detected using ultrasound in our study. How to cite this article Tyagi S, Kumar P, Mehrotra A, Parakh P, Kumar L, Hans P. Radiological Evaluation of Thyroid Diseases using Gray Scale and Color Doppler Sonography. Int J Adv Integ Med Sci 2016;1(4):173-182.

Intrarenal color Doppler sonography in studying patients affected by systemic sclerosis

2008 ◽  
Vol 29 (S 1) ◽  
Author(s):  
M Sperandeo ◽  
G D'Amico ◽  
G Sperandeo ◽  
ML Piattelli ◽  
S Muscarella ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography

A case of breast cholesterol granuloma presenting twinkling artifact on color Doppler sonography

Choonpa Igaku ◽  
2014 ◽  
Vol 41 (6) ◽  
pp. 867-870
Author(s):  
Yuka KUJIRAOKA ◽  
Yuichi DAI ◽  
Emika ICHIOKA ◽  
Tatsuhiko IKEDA ◽  
Hisato HARA
Keyword(s):  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography ◽  
Cholesterol Granuloma ◽  
Twinkling Artifact
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