Power Doppler Improves the Diagnostic Accuracy of Color Doppler Ultrasonography in Cold Thyroid Nodules: Follow-Up Results

1999 ◽  
Vol 52 (1) ◽  
pp. 19-24 ◽  
Author(s):  
G. Cerbone ◽  
S. Spiezia ◽  
A. Colao ◽  
A. Di Sarno ◽  
A.P. Assanti ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Doppler Ultrasonography ◽  
Thyroid Nodules ◽  
Color Doppler ◽  
Power Doppler ◽  
Color Doppler Ultrasonography ◽  
Cold Thyroid Nodules

Diagnostic Value of Color Doppler Ultrasonography in Detecting Calcifications in Thyroid Nodules for Benign and Malignant Nodules

2020 ◽  
Vol 10 (7) ◽  
pp. 1621-1630
Author(s):  
Xia Liu ◽  
Defeng Chang ◽  
Dan Xie
Keyword(s):  
Thyroid Cancer ◽  
Doppler Ultrasound ◽  
Doppler Ultrasonography ◽  
Thyroid Nodules ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Diagnostic Value ◽  
Color Doppler Ultrasonography ◽  
Benign Nodules ◽  
Coarse Calcification

Objective: To investigate the diagnostic value of color Doppler ultrasonography in detecting calcifications in thyroid nodules for benign and malignant thyroid nodules. Methods: This study selects 108 patients with thyroid nodules who underwent color Doppler ultrasonography at designated hospitals from June 2013 to June 2018 as study subjects, retrospectively analyzes their general patient data, preoperative color Doppler ultrasound data and postoperative pathological diagnosis results, and discusses the diagnostic value of calcification rate, calcification type and calcification characteristics for benign and malignant thyroid nodules. Results: The results show that preoperative color Doppler ultrasonography found 112 thyroid nodules in 108 patients, including 72 benign nodules and 40 malignant nodules; pathological analysis confirmed 124 thyroid nodules, including 78 benign nodules and 46 malignant nodules; the diagnostic coincidence rate of color Doppler ultrasound is 90.32% (112/124), the misdiagnosis rate is 9.68% (12/124), the specificity is 86.94%, and the sensitivity is 81.27%; in these 112 thyroid nodules, 89 nodules were calcified accounting for 79.46%; in 72 benign nodules, 13 nodules were calcified accounting for 18.06%; in 40 malignant nodules, 17 were calcified accounting for 42.50%; the calcification of malignant nodules was significantly higher than that of benign nodules; in 72 benign nodules, 6 cases is coarse calcification accounting for 8.33%, 3 cases is cyclic calcification accounting for 4.16%, and cyclic and coarse calcification are only 23.46% sensitive to thyroid cancer; in 40 malignant nodules, 3 cases is coarse calcification accounting for 7.5%, and 2 cases is cyclic calcification accounting for 5.00%. Conclusions: According to the analysis, the calcification in thyroid nodules has relatively high sensitivity and specificity for the diagnosis of benign and malignant nodules and it can be used as a specific index for screening thyroid cancer.

Thyroid nodules: evaluation with color Doppler ultrasonography

1993 ◽  
Vol 12 (11) ◽  
pp. 673-678 ◽  
Author(s):  
K Shimamoto ◽  
T Endo ◽  
T Ishigaki ◽  
S Sakuma ◽  
N Makino
Keyword(s):  
Doppler Ultrasonography ◽  
Thyroid Nodules ◽  
Color Doppler ◽  
Color Doppler Ultrasonography

scholarly journals COLOR DOPPLER ULTRASONOGRAPHY FINDINGS IN KIDNEY ALLOGRAFTS BEFORE AND AFTER TRANSPLANTATION

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Suraj Mathur ◽  
P. Rajan ◽  
Dr. Jaya Kumar E. K
Keyword(s):  
Doppler Ultrasound ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Vascular Complications ◽  
Biochemical Parameter ◽  
Color Doppler Ultrasound ◽  
Color Doppler Ultrasonography ◽  
Kidney Allograft ◽  
Significant Difference

Method: A sample size of 40 kidney allograft recipients undergoing color Doppler Ultrasonography evaluation included in the study. Result: Corticomeduallry differentiation of kidney allografts within 24 hours post transplant period: There was no significant difference between CMD of kidney allorgrafts with complication and kidney allografts without any complication within 24 hour because the standard deviations of both groups were 0. Corticomeduallry differentiation in all kidney allografts, all were shows maintained corticomedullary differentiation. Conclusion: This study is aimed to assessing the role of CDUS in kidney allograft recipients to evaluate the graft perfusion immediate after anastamosis, within 24 hours and follow up period after engraftment of kidney allograft. Analyse the Color Doppler Ultrasound (CDUS) indices changes in parenchymal, and vascular cause of allograft dysfunction at follow up periods, to evaluate the uroloical, surgical and vascular complications in kidney recipients by using gray scale and color Doppler US at follow up periods and compare the results with biochemical parameter (serum creatinine). Immediate Doppler ultrasound is highly useful in the diagnosis of primary graft dysfunction and in follow-up of the transplanted patient. Keywords: Graft Perfusion, Anastamosis, Color, Doppler, Ultrasound

scholarly journals Sensitivity, Specificity and Accuracy of Color Doppler Ultrasonography for Diagnosis of Retinal Detachment

2020 ◽  
Author(s):  
Mohammadreza Akhlaghi ◽  
Masoomeh Zarei ◽  
Majid Ziaei ◽  
Mohsen Pourazizi
Keyword(s):  
Retinal Detachment ◽  
Diagnostic Accuracy ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
False Positive Rate ◽  
False Negative ◽  
False Negative Rate ◽  
Color Doppler Ultrasonography ◽  
Promising Tool ◽  
Sensitivity Specificity

Purpose: This study evaluated the sensitivity, specificity, and diagnostic accuracy of Color Doppler Ultrasonography (CDUS) in patients with suspected retinal detachment (RD) who underwent surgery. Methods: In this prospective, observational clinical study, 65 eyes of 65 consecutive patients with suspected RD with opaque media were included. Following a standardized protocol, CDUS of the retina of the affected eye was performed. The sensitivity, specificity, and diagnostic accuracy of CDUS were determined and compared to the findings during surgery. Results: The mean age of patients (18 men and 47 women) was 52.36 years (range: 8–77 years). The sensitivity, specificity, and overall accuracy of ocular CDUS were 91.3%, 88.1%, and 89.2%, respectively. The false-negative rate (negative CDUS images but presence of RD at operation) was 3.1% (2/65) and the false-positive rate (positive CDUS images but absence of RD at operation) was 7.7% (5/65). Conclusion: CDUS of the retina could be considered as a promising tool in the diagnosis of RD in patients with opaque media.

Endovenous laser ablation and sclerotherapy for incompetent vein of Giacomini

2013 ◽  
Vol 29 (8) ◽  
pp. 511-516 ◽  
Author(s):  
Ismail Guzelmansur ◽  
Levent Oguzkurt ◽  
Nihal Koca ◽  
Cagatay Andic ◽  
Murat Gedikoglu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Clinical Severity ◽  
Ultrasound Guided ◽  
Foam Sclerotherapy ◽  
Endovenous Laser Ablation ◽  
Vein Insufficiency

Purpose To retrospectively evaluate the feasibility and effectiveness of endovenous laser ablation or ultrasound-guided foam sclerotherapy for Giacomini vein insufficiency. This is the largest cohort of patients treated for Giacomini vein insufficiency with endovenous laser ablation or ultrasound-guided foam sclerotherapy. Material and methods Over a three-year period, 23 females and nine males (age range, 19–67 years) treated for Giacomini vein insufficiency with or without saphenous vein insufficiency were retrospectively reviewed. Diagnosis of venous insufficiency was made by color Doppler ultrasonography. Symptomatic insufficiency of the Giacomini vein or the saphenous veins was treated with endovenous laser ablation. Ultrasound-guided foam sclerotherapy was used for tortuous incompetent Giacomini veins. The venous disease was categorized according to the clinical, etiological, anatomical, and pathological classification, and clinical severity was graded with the venous clinical severity score. Follow-up included clinical examination and color Doppler ultrasonography. Results Thirty-nine limbs in 32 patients were treated (25 endovenous laser ablation and seven ultrasound-guided foam sclerotherapy). All procedures were technically successful. One patient in the ultrasound-guided foam sclerotherapy group had a recurrence with successful repeated treatment. Recurrence was not seen in the endovenous laser ablation group. No complications were observed. All patients had resolution and improvement in 100% of their symptoms at 12 months of follow-up. Conclusion Giacomini vein insufficiency is mostly seen with insufficiency of the great saphenous vein and can be effectively treated with endovenous laser ablation or ultrasound-guided foam sclerotherapy.

scholarly journals Usefulness of Color Doppler Ultrasonography in the Risk Stratification of Thyroid Nodules

2020 ◽  
pp. 1-6
Author(s):  
Ernesto Maddaloni ◽  
Silvia Irina Briganti ◽  
Anna Crescenzi ◽  
Giuseppina Beretta Anguissola ◽  
Eleonora Perrella ◽  
...  
Keyword(s):  
Risk Stratification ◽  
Doppler Ultrasonography ◽  
Thyroid Nodules ◽  
Color Doppler ◽  
Color Doppler Ultrasonography

scholarly journals Prenatal Diagnosis of an Aneurysm of the Vein of Galen by Three-Dimensional Power and Color Doppler Ultrasonography

2012 ◽  
Vol 5 ◽  
pp. CCRep.S9597 ◽  
Author(s):  
Livia Teresa Moreira Rios ◽  
Edward Araujo Júnior ◽  
Luciano Marcondes Machado Nardozza ◽  
Antonio Fernandes Moron ◽  
Marília da Glória Martins
Keyword(s):  
Prenatal Diagnosis ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Cerebral Arteries ◽  
Power Doppler ◽  
Three Dimensional ◽  
Cystic Mass ◽  
Color Doppler Ultrasonography ◽  
Power Doppler Ultrasonography ◽  
Vein Of Galen

Aneurism of the vein of Galen is a complex arteriovenous malformation which is of multiply communications between of the vein of Galen and the cerebral arteries. It represents less than 1% of the cerebral arteriovenous malformations. Few cases using three-dimensional (3D) power and color Doppler ultrasound have been reported in the literature. We present a case of an aneurysm of the vein of Galen diagnosed at 25th week of pregnancy. We demonstrate the main findings of 3D power and color Doppler ultrasonography in this anomaly. A 36-year-old pregnant woman, gravida 3, para 2 was referred to our institution because of a midline cystic mass diagnosed in a previous ultrasonography undertaken at 24 weeks' gestation. The ultrasonographic finding consisted of a male fetus with a midline cystic mass, with positive flow detection by color Doppler and ventriculomegaly due to the compressive effects of the malformation. The 3D color and power Doppler ultrasonography allowed us to reconstruct the architecture of the vascular malformation, and it showed the spatial relationships of aneurysm of the vein of Galen with the other structures of the brain. Pregnancy was interrupted at 29 weeks' gestation because of presence of cardiomegaly. A male newborn survived for 36 hours only. The 3D ultrasound can be used as advent image technique in prenatal diagnosis of aneurysm of the vein of Galen.

scholarly journals Diagnostic Accuracy of Twinkling Artifact Sign Seen in Color Doppler Ultrasonography in Detecting Microlithiasis of Kidney

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
Maryam Letafati ◽  
Mohammad Kazem Tarzamni ◽  
Parisa Hajalioghli ◽  
Siavash Mohammad Taheri ◽  
Hamed Vaseghi ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Twinkling Artifact

scholarly journals Predicting Malignancy in a Solitary Thyroid Nodule: A Prospective Study on the Role of Color Doppler Ultrasonography

2014 ◽  
Vol 6 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Ravi Varma ◽  
Gururaja Rao ◽  
Shilpa Rao ◽  
Nikhil M Bhagwat ◽  
Manoj D Chadha ◽  
...  
Keyword(s):  
Prospective Study ◽  
Thyroid Nodule ◽  
Doppler Ultrasonography ◽  
Thyroid Nodules ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Solitary Thyroid Nodule ◽  
A Prospective Study ◽  
Central Flow

ABSTRACT Palpable thyroid nodules are fairly common. While many are benign, the clinician faces the challenge of detecting the 4 to 14% of malignant lesions. Fine needle aspiration cytology (FNAC) of thyroid nodules seems to have eclipsed all other techniques for diagnosis of thyroid cancer, but has its limitations when a nodule is inaccessible or in the case of follicular neoplasm. This study from a hospital from Indian west coast shows that vascular flow pattern of extensive peripheral and central flow (Type-3) or a central flow only (Type-4) and a resistive index (RI) of >0.75 on power Doppler sonography shows a healthy sensitivity and excellent specificity for predicting malignancy. The utility becomes even more apparent among follicular neoplasms where FNAC can offer little help in distinguishing malignancy. How to cite this article Rao G, Rao S, Varma R, Bhagwat NM, Chadha MD, Joshi AS, Varthakavi PK. Predicting Malignancy in a Solitary Thyroid Nodule: A Prospective Study on the Role of Color Doppler Ultrasonography. Int J Otorhinolaryngol Clin 2014;6(1):9-14.

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