scholarly journals Color Doppler Score: A New Approach for Monitoring a Large Placental Chorioangioma

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Maria Angelica Zoppi ◽  
Alessandra Piras ◽  
Ambra Iuculano ◽  
Maurizio Arras ◽  
Federica Mulas ◽  
...  
Keyword(s):  
Blood Flow ◽  
Prenatal Diagnosis ◽  
Color Doppler ◽  
Expectant Management ◽  
Innovative Approach ◽  
Minimal Flow ◽  
Semiquantitative Assessment ◽  
New Approach ◽  
Vascular Flow ◽  
Mass Size

We employed color Doppler score as an innovative approach for the prenatal diagnosis and monitoring of a large placental chorioangioma case diagnosed at 26 weeks and the subjective semiquantitative assessment of the vascularization. The blood flow was assessed by a color Doppler score based on the intensity of the color signal with the following value ranges: (1) no flow, (2) minimal flow, (3) moderate flow, and (4) high vascular flow. Weekly examinations were programmed. Initially, a color Doppler score 3 was assigned, remaining unchanged at the following two exams and decreasing to Score 2 in the following 2 exams and to Score 1 thereafter. The ultrasonographic scan showed an increase of the mass size at the second and third exams and was followed by an arrest of the growth persisting for the rest of the pregnancy. Some hyperechogenic spots inside the mass appeared at the end. Expectant management was opted for, and the delivery was at 39, 2 weeks and maternal and fetal outcomes were favourable. The color Doppler score employed for assessment of vascularization in successive examinations proved to be an important tool for the prediction of the chorioangioma involution, and this new approach of monitoring allowed effective surveillance and successful tailored management.

A case of prenatal diagnosis of corpus callosum lipoma

2020 ◽  
Author(s):  
A.I. Zamiatina, M.V. Medvedev
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Prenatal Diagnosis ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Color Doppler ◽  
Septum Pellucidum ◽  
Resonance Imaging

A case of prenatal diagnosis of the corpus callosum lipoma at 32–33 weeks of gestation is presented. In a consultative examination, a hyperechoic formation with clear contours was found in the projection of the septum pellucidum, occupying the rostrum, genu, and truncus of corpus callosum, without signs of intratumorally blood flow in the color Doppler mapping mode. The prenatal diagnosis of "callosum lipoma" was established, confirmed after the birth of a child during magnetic resonance imaging.

scholarly journals Prenatal diagnosis of varix of the fetal intraabdominal umbilical vein: Case report

2008 ◽  
Vol 61 (1-2) ◽  
pp. 75-78 ◽  
Author(s):  
Aleksandra Novakov-Mikic ◽  
Sinisa Stojic
Keyword(s):  
Blood Flow ◽  
Case Report ◽  
Prenatal Diagnosis ◽  
Anterior Abdominal Wall ◽  
Umbilical Vein ◽  
Color Doppler ◽  
Contemporary Literature ◽  
Ultrasound Scan ◽  
Lower Edge ◽  
Doppler Examination

Varix of intraabdominal part of fetal umbilical vein is during a prenatal ultrasound scan seen as a hypoechogenic mass between anterior abdominal wall and lower edge of liver, and the diagnosis is confirmed when blood flow is seen during color Doppler examination. A case of prenatal diagnosis of this abnormality is presented, with review of contemporary literature regarding diagnosis and management as well as the outcome of such pregnancies.

scholarly journals PSIII-33 A new approach to resynchronize beef cows and perform two Timed Artificial Inseminations 24 days apart

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 257-258
Author(s):  
Marcos A Colli ◽  
Garrett Cline ◽  
Josh Walker ◽  
David Forrest ◽  
Pietro S Baruselli ◽  
...  
Keyword(s):  
Blood Flow ◽  
Statistical Analysis ◽  
Pregnancy Rate ◽  
False Positive ◽  
Color Doppler ◽  
Beef Cows ◽  
Visual Evaluation ◽  
New Approach ◽  
Pregnancy Diagnosis ◽  
Lactating Cows

Abstract We aimed to compare the pregnancy rate from 1stTAI and 2ndTAI performed 24 days apart and pregnancy between cows that showed or not estrous on the end of 2nd TAI protocol. Were used 190 lactating cows (Angus: 114; Brangus: 53 and Santa Gertrudis: 23). On the first day of synchronization (D0), insertion of a new CIDR® (Zoetis) plus the 100µg of Cystorrelin®(Merial) treatment, on D7 25mg of Lutalyse® (Zoetis) and CIDR withdrawal. 72 hours after CIDR removal 1stTAI was performed plus GnRH treatment. After 14 days from 1stTAI, all the cows received an one time used CIDR. The pregnancy diagnosis was performed 22 days after 1stTAI, using a subjective visual evaluation of CL blood flow (BF). Pregnancy diagnosis was performed by ultrasonography Color Doppler (MicroMaxx®). Cows with an area of CL≥3cm² and/or ≥25% CL BF were diagnosed as pregnant and underwent CIDR removal without further treatment. Those diagnosed as non-pregnant underwent CIDR removal and received one Estrotect™ (Rockway-Inc.), 25mg of Lutalyse treatment and submitted to 2nd TAI 48h after CIDR removal (D24) plus the 100µg of Cystorrelin. On D31 considered pregnant cows on D22 were examined by US B-mode D31 to verify false positive and effective pregnancies. On D55, cows were submitted to US B-mode to verify the 2ndTAI pregnancy rate. Statistical analysis were performed using GLIMMIX procedure from SAS. The pregnancy on D22 was 48.5% (87/190) and the false positives were 14.9% (13/87). There was no difference on pregnancy 31 days after 1stTAI (38.9%; 74/190) vs. 2nd TAI (32.0%; 33/103; P = 0.24). Cows were more likely to be pregnant on D55 compared to cows that: showed Estrous: 42.9% (21/49) vs. No Estrous: 22.2% (12/54; P = 0.03). In conclusion, the pregnancy rates were the same at 1st to 2ndTAI. And cows that showed estrous had more pregnancy at 2ndTAI.

An approach for comparative quantification of myocardial blood flow (0-15-H2O-PET), perfusion (Tc-99m-tetrofosmin-SPECT), and metabolism (F 18-FDG-PET)

2001 ◽  
Vol 40 (05) ◽  
pp. 164-171 ◽  
Author(s):  
B. Nowak ◽  
H.-J. Kaiser ◽  
S. Block ◽  
K.-C. Koch ◽  
J. vom Dahl ◽  
...  
Keyword(s):  
Blood Flow ◽  
Myocardial Blood Flow ◽  
Fdg Pet ◽  
Model Fitting ◽  
Compartment Model ◽  
Left Ventricular ◽  
Short Axis ◽  
New Approach ◽  
Single Compartment Model ◽  
Tissue Fraction

Summary Aim: In the present study a new approach has been developed for comparative quantification of absolute myocardial blood flow (MBF), myocardial perfusion, and myocardial metabolism in short-axis slices. Methods: 42 patients with severe CAD, referred for myocardial viability diagnostics, were studied consecutively with 0-15-H2O PET (H2O-PET) (twice), Tc-99m-Tetrofosmin 5PECT (TT-SPECT) and F-18-FDG PET (FDG-PET). All dato sets were reconstructed using attenuation correction and reoriented into short axis slices. Each heart was divided into three representative slices (base, rnidventricular, apex) and 18 ROIs were defined on the FDG PET images and transferred to the corresponding H2O-PET and TT-SPECT slices. TT-SPECT and FDG-PET data were normalized to the ROI showing maximum perfusion. MBF was calculated for all left-ventricular ROIs using a single-compartment-model fitting the dynamic H2O-PET studies. Microsphere equivalent MBF (MBF_micr) was calculated by multiplying MBF and tissue-fraction, a parameter which was obtained by fitting the dynamic H2O-PET studies. To reduce influence of viability only well perfused areas (>70% TT-SPECT) were used for comparative quantification. Results: First and second mean global MBF values were 0.85 ml × min-1 × g-1 and 0.84 ml × min-1 × g1, respectively, with a repeatability coefficient of 0.30 ml ÷ min-1 × gl. After sectorization mean MBF_micr was between 0.58 ml × min1 ÷ ml"1 and 0.68 ml × min-1 × ml"1 in well perfused areas. Corresponding TT-SPECT values ranged from 83 % to 91 %, and FDG-PET values from 91 % to 103%. All procedures yielded higher values for the lateral than the septal regions. Conclusion: Comparative quantification of MBF, MBF_micr, TT-SPECT perfusion and FDG-PET metabolism can be done with the introduced method in short axis slices. The obtained values agree well with experimentally validated values of MBF and MBF_micr.

scholarly journals AB1076 COLOR DOPPLER HIGH- FREQUENCY ULTRASOUND OF DIGITAL ARTERIES IN PATIENTS WITH SYSTEMIC SCLEROSIS

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1827.3-1827
Author(s):  
O. Alekseeva ◽  
N. Yudkina ◽  
A. Demina ◽  
A. Volkov ◽  
E. Nasonov
Keyword(s):  
Blood Flow ◽  
Systemic Sclerosis ◽  
Color Doppler ◽  
Laboratory Data ◽  
Clinical Signs ◽  
Vascular Complications ◽  
Nailfold Capillaroscopy ◽  
Exclusion Criterion ◽  
Digital Ulcers ◽  
Linear Probe

Background:Systemic sclerosis (SSc) can lead to vascular complications such as digital ulcers or pitting scars (DU/PS). These changes develop in most patients with SSc and exacerbate their condition. However, there are no methods for dynamic assessment of the vascular involvement. The dynamics of capillaroscopic changes is very slow.Objectives:The aim of the study was to compare blood flow parameters of digital arteries in SSc patients and healthy individuals and to compare with nailfold capillaroscopy and clinical signs of ischemia (DU/PS).Methods:32 SSc patients, mean age 49,5 [42,0; 59,0] yrs and 26 ‘healthy’, mean age 43,5 [33,0; 57,0], were included. Groups of patients differed by gender and age. The exclusion criterion was the presence of obliterating vascular disease of the upper extremities. An Esaote MyLab Twice US system with 22 MHz linear probe was used. A total of SSc patients and controls underwent Color Doppler ultrasonography (CDUS) of 376 (256 + 208) digital arteries to compare blood flow velocity, resistive indices (RIs) and presence of occlusion. Nailfold capillaroscopy, clinical and laboratory data were also evaluated.Results:In digital arteries, pulsatility index (PI), peak systolic velocity (PSV) and end-diastolic velocity (EDV) were significantly lower and RI higher in SSc patients compared with controls (PSV: 13,28 [9,88; 16,7] vs17,45 [12,65; 22,5] cm/s, p=0,008; EDV: 2,68 [1,78, 4,05] vs 6,37 [4,75; 8,5] cm/s, p=0,000; RI: 0,78 [0,69; 0,81] vs 0,68 [0,59; 0,74], p=0,005; PI: 1,73 [1,32; 2,19] vs 1,22 [0,99; 1,55], p=0,002).We did not find any correlation between two methods. Also, we did not reveal any correlation between DU/PS, clinical, laboratory data and CDUS, but we found relationship between DU/PS and avascular areas or capillaroscopic findings (r= 0,37, p=0,045 and r= 0,40, p=0,03 correspondingly).Conclusion:Blood flow is significantly decreased in digital arteries in SSc, but clinical features of vasculopathy depend on microcirculatory disorders. It is important to continue research to find methods for dynamic evaluation of microcirculatory changes.References:noDisclosure of Interests:None declared

scholarly journals Improved color Doppler for cerebral blood flow axial velocity imaging

2020 ◽  
pp. 1-1
Author(s):  
Jianbo Tang ◽  
Kivilcim Kilic ◽  
Thomas L. Szabo ◽  
David A. Boas
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Axial Velocity ◽  
Color Doppler ◽  
Velocity Imaging

Qualitative Diagnosis of Solid Breast Mass by Blood Flow in Solid Breast Mass Based on Color Doppler Ultrasound

2021 ◽  
Vol 11 (6) ◽  
pp. 1608-1615
Author(s):  
Ding Zuopeng ◽  
Liu Weiyong ◽  
Hu Chunmei ◽  
Wang Tao ◽  
Wang Mingming
Keyword(s):  
Breast Cancer ◽  
Blood Flow ◽  
Differential Diagnosis ◽  
Color Doppler ◽  
Flow Characteristics ◽  
Flow Distribution ◽  
Color Doppler Ultrasound ◽  
Blood Flow Distribution ◽  
Breast Masses ◽  
Malignant Breast

The incidence of breast cancer ranks first among female malignant tumor. With the increase of the sensitivity of color Doppler ultrasound blood flow, the blood flow distribution in and around the tumor can be clearly displayed, and the analysis of hemodynamic parameters is provided, which provides convenience for the study of tumor blood flow characteristics. Studies have shown that tumor cells can secrete a substance called angiogenesis factor, which makes the tumor site form a rich vascular network to promote tumor growth and metastasis. The tumor has many new blood vessels, abnormal structure, thin wall, lack of muscle layer, and is prone to form arteriovenous rash. These characteristics provide a pathological basis for color Doppler flow imaging (CDFI) for the diagnosis of breast cancer. This article discusses the role of two-dimensional sonographic features in the differential diagnosis of benign and malignant breast masses, CDFI was used to study the blood flow distribution and hemodynamic characteristics in benign and malignant breast masses; explore the value of blood flow characteristics and blood flow parameters in the differential diagnosis of breast masses. The experimental results show that the detection rate of blood flow signals and the classification of blood flow signals in the malignant group are higher than those in the benign group, mainly level II and III blood flow, and the irregular branched blood flow is more common, especially when the tumor appears penetrating blood flow supports the diagnosis of malignancy. PSV, RI and PI have a certain differential meaning in the diagnosis of benign and malignant breast masses. PSV, RI and PI of malignant masses are higher than benign masses. For tumors without obvious necrosis, the larger the tumor diameter, the richer the blood flow and the higher the blood flow grade is. The malignant tumors have more blood flow than the benign ones.

scholarly journals Capillary hemangioma of the scrotum mimicking an epididymal tumor: Case report

2014 ◽  
Vol 86 (4) ◽  
pp. 395 ◽  
Author(s):  
Antonio Vavallo ◽  
Francesco Lafranceschina ◽  
Giuseppe Lucarelli ◽  
Carlo Bettocchi ◽  
Pasquale Ditonno ◽  
...  
Keyword(s):  
Blood Flow ◽  
Case Report ◽  
Color Doppler ◽  
Capillary Hemangioma ◽  
Scrotal Mass ◽  
Scrotal Ultrasound ◽  
Pathological Evaluation

We report a case of capillary hemangioma of the scrotum. A 52-year-old male presented with a left scrotum swelling that had arisen suddenly two months before. Scrotal ultrasound revealed a dishomogeneous mass in the left scrotum. The mass demonstrated blood flow in the color Doppler mode. Scrotal mass excision was performed. Pathological evaluation revealed a capillary hemangioma.

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