scholarly journals The Role of Contrast-Enhanced Ultrasound in Selection Indication and Improveing Diagnosis for Transthoracic Biopsy in Peripheral Pulmonary and Mediastinal Lesions

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Song Wang ◽  
Wei Yang ◽  
Hui Zhang ◽  
Qian Xu ◽  
Kun Yan
Keyword(s):  
Imaging Features ◽  
Contrast Enhanced Ultrasound ◽  
Accuracy Rate ◽  
Pulmonary Atelectasis ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Peripheral Lung ◽  
Transthoracic Biopsy ◽  
Conventional Ultrasound

Objective. To investigate the value of contrast-enhanced ultrasound (CEUS) in transthoracic biopsy of peripheral lung and mediastinal lesions.Methods. Of 142 patients, 82 patients received CEUS before biopsy and were defined as CEUS group. The remaining 60 patients only underwent conventional ultrasound (US) before biopsy and were served as US group. The information of CEUS was used for selecting indication and instructing biopsy. The imaging features, number of punctures, diagnostic successful rate, and complication rate between the two groups were compared.Results. Necrosis was demonstrated in 43.9% of the lesions in CEUS group and in 6.7% of US group (P<0.001). Detection rate of lesion hidden in pulmonary atelectasis in CEUS group was 13.4%, which was statistically higher than 1.7% of US group (P=0.013). The diagnostic success rate was 96.3% for CEUS group and 80% for US group, respectively (P=0.002). The average number of punctures was2.5±0.7and2.6±0.6, respectively. There was no significant difference in complications between CEUS group and US group.Conclusions. CEUS could play an important role in selecting proper indication and improving diagnostic accuracy rate of lung biopsy.

scholarly journals The Value of Contrast-Enhanced Ultrasound in the Diagnosis of Cesarean Scar Pregnancy

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Xi Xiong ◽  
Ping Yan ◽  
Chunyan Gao ◽  
Qiulei Sun ◽  
Fenglian Xu
Keyword(s):  
Predictive Value ◽  
Lower Uterine Segment ◽  
Youden Index ◽  
Peak Time ◽  
Contrast Enhanced Ultrasound ◽  
Cesarean Scar Pregnancy ◽  
Cesarean Scar ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Conventional Ultrasound

Objective. To evaluate the value of contrast-enhanced ultrasound (CEUS) in the cesarean scar pregnancy (CSP).Methods. Clinical data from 92 patients with lower uterine segment pregnancy, who underwent conventional ultrasound and CEUS examination in the Department of Obstetrics and Gynecology, were collected by Xinqiao Hospital Third Military Medical University from March 2014 to March 2015. The parameters of ultrasound contrast time-intensity curve (TIC), including arrival time, time to peak, time from peak to one half, basic intensity, peak intensity, and wash-in slope, were analyzed.Results. Of the 92 cases of patients with pregnancy in the lower uterine segment, 52 cases were CSP, and 40 cases were intrauterine pregnancy. CEUS was significantly better than conventional ultrasound in terms of sensitivity, negative predictive value, Youden index, and diagnostic accuracy (P<0.05). There was no significant difference in specificity and positive predictive value (P>0.05).Conclusion. CEUS has a higher accuracy than conventional ultrasound in diagnosis of CSP.

scholarly journals Real-time monitoring of contrast-enhanced ultrasound for radio frequency ablation

Open Medicine ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. 474-480 ◽  
Author(s):  
Jiangwei Liu ◽  
Yan Liu ◽  
Jianzhao Huang ◽  
Lei Huang ◽  
Pengwei Zhao
Keyword(s):  
Radio Frequency ◽  
Real Time ◽  
Radio Frequency Ablation ◽  
Contrast Enhanced Ultrasound ◽  
Liver Model ◽  
Horizontal Diameter ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Swine Liver ◽  
Conventional Ultrasound

AbstractBackgroundThis study compared the realtime monitoring effects of conventional ultrasound and contrast-enhanced ultrasound (CEUS) on evaluating radio frequency ablation (RFA) in a living swine liver model.MethodologyLiver RFA was performed on 10 young swine. Conventional ultrasound and CEUS were performed immediately. After the animals were sacrificed, ablation lesions were removed to histopathologically examine the range of the lesions. Ablation completeness based on three methods were compared using histopathology as the gold standard.ResultsForty-three ablation lesions were produced in the animals. The horizontal diameter, vertical diameter and ablation lesion area based on conventional ultrasound were all significantly smaller than those based on the gross sample, but no significant differences existed between the results of the CEUS and the gross sample. Histopathology showed that 30 lesions were incompletely ablated and 13 were completely ablated, while CEUS showed that 28 lesions were incompletely ablated and 15 were completely ablated. Compared with histopathology, CEUS had an accuracy of 81.4%, a sensitivity of 83.3%, and a specificity of 76.9%. No significant difference in ablation completeness judgment between CEUS and histopathology was observed.ConclusionCEUS provides a real-time radiological foundation for evaluating RFA lesion ranges and completeness in a living swine liver model.

scholarly journals Contrast-Enhanced and Microvascular Ultrasound Imaging Features of Testicular Lymphoma: Report of Five Cases and Review Literature

2021 ◽  
Author(s):  
Li Yang ◽  
Yuan Tao ◽  
Bao Meiling ◽  
Zhang Weixin ◽  
Hang Jing
Keyword(s):  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Review Literature ◽  
Ultrasound Images ◽  
Imaging Features ◽  
Contrast Enhanced Ultrasound ◽  
Testicular Lymphoma ◽  
Contrast Enhanced ◽  
Conventional Ultrasound ◽  
Primary Testicular Lymphoma

Abstract Background: To retrospectively investigate the grey-scale, Doppler, contrast-enhanced and microvascular ultrasound of five patients with primary testicular lymphoma of our institute through review literature analysis.Methods: From January to November 2020, five patients with primary testicular lymphoma confirmed by histology were preoperatively investigated with a standardized sonographic protocol including contrast-enhanced and microvascular ultrasound.Results: Conventional ultrasound showed localized hypoechogenicity represented with solitary lesions(2 of 5), multiple lesions (2 of 5), or entire testicular involvement (1 of 5). And increased blood flow appeared by color Doppler ultrasound with straight vascular sign(4 of 5). In contrast-enhanced ultrasound images confirmed this pattern(4 of 5) and presented incresaed enhancement with enlarged range. On microvascular ultrasound imagings, all lesions were presented with straight and parallel course of intralesional vessels(5 of 5).Conclusions: Here, we identified the increased vascularity with enlarged range on contrast-enhanced ultrasound along with a linear nonbranching pattern by vascular sign on microvascular ultrasonographic of testicular lymphoma.

scholarly journals Adrenal incidentalomas: imaging challenges—role of MDCT scan versus MRI in evaluating adrenal incidentalomas

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Monica Maher Amin Nawar ◽  
Sameh Abdel Aziz Zaky Hanna ◽  
Shereen Sadik El-Sawy ◽  
Sally Yehia Shokralla
Keyword(s):  
Significant Risk ◽  
Adrenal Incidentaloma ◽  
Adrenal Incidentalomas ◽  
Specific Patient ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Significant Difference ◽  
Adrenal Masses

Abstract Background The term adrenal incidentaloma (AI), by definition, is an adrenal mass that is unexpectedly detected through an imaging procedure performed for reasons unrelated to adrenal dysfunction or suspected dysfunction. Despite their frequent appearance, the challenge remains in recognizing and treating the small percentage of AI that poses a significant risk, either because of their hormonal activity or because of their malignant histology. The aim of this study is to study the role of MRI, specifically chemical shift imaging (CSI), against various MDCT scans (non-enhanced, enhanced, and delayed) in the characterization of incidentally discovered adrenal masses to offer a way for the patients to avoid unnecessary time and money-wasting imaging modalities used to reach a diagnosis of their incidentally discovered adrenal lesions. We examined a total number of 20 patients with total of 22 adrenal lesions. The mean age was 51.1 ± 15.27. Results In our study, we found that among CT parameters, APW and RPW showed the highest sensitivity and specificity for detection of lipid-rich adenomas. CSI has also proven to be the best MR technique. However, there is no statistically significant difference in the diagnostic capability of CSI versus the CT washout technique. Both modalities could be conducted, according to specific patient preferences and/or limitations, with comparable highly accurate outcomes. Conclusion This study demonstrates that a similar diagnostic outcome is obtained from contrast-enhanced CT (CECT) and MRI with CSI of adrenal lesions.

Comparison of contrast-enhanced ultrasound targeted biopsies versus standard systematic biopsies for prostate cancer correction in different PSA value groups in rural China

2020 ◽  
pp. 1-7
Author(s):  
Dian Yuan Lu ◽  
Lan Liu ◽  
Li Shen ◽  
Jian Rong Cai ◽  
Li Xu ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cancer Detection ◽  
Detection Rate ◽  
Rural China ◽  
Clinical Importance ◽  
Contrast Enhanced Ultrasound ◽  
Biopsy Core ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Positive Rate

OBJECTIVE: To investigate prostate cancer detection rate of different biopsy protocols in different PSA value groups in rural China. METHODS: A total of 186 patients underwent contrast-enhanced ultrasound (CEUS) in order to determine the puncture target prior to biopsy were enrolled in this retrospective study. All patients underwent 12-core SB combined with CEUS-TB. The biopsy results of different biopsy protocols were compared in patients with stratification by PSA value. RESULTS: Among the 186 patients underwent prostate biopsy, the histopathologic results revealed prostate cancer (PCa) in 117 cases (62.9%) and benign lesions in 69 cases (37.1%). The PCa detection rate between 8-core SB and 12-core SB showed no significant difference in PSA 4–10 ng/ml group, while the 12-core SB was significantly higher than CEUS-TB (44.9% versus 32.7% , P = 0.01). In PSA 10–20 ng/ml group, the significant difference was not seen between SB and CEUS-TB (50.0% versus 45.7% , P = 0.15). As for PSA greater than 20 ng/ml group, the PCa detection rate by SB was higher than CEUS-TB, but showed no statistically significance (79.1% versus 76.9% , P = 0.15). In the overall patients, the biopsy core positive rate of CEUS-TB was significantly higher than SB (97% versus 55.5% and 28.5% , P = 0.0001). CONCLUSION: The flexible use of SB combined with CEUS-TB can reduce the number of biopsy cores in higher PSA groups. It has clinical importance in the detection of PCa in different PSA value groups in rural China.

scholarly journals Contrast-Enhanced Ultrasound (CEUS) in Non-Traumatic Abdominal Emergencies

2020 ◽  
Vol 06 (03) ◽  
pp. E76-E86
Author(s):  
Diletta Cozzi ◽  
Simone Agostini ◽  
Elena Bertelli ◽  
Michele Galluzzo ◽  
Emanuela Papa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ultrasound Imaging ◽  
Acute Inflammation ◽  
Emergency Setting ◽  
Contrast Enhanced Ultrasound ◽  
First Line ◽  
Additional Information ◽  
Contrast Enhanced ◽  
Conventional Ultrasound ◽  
Abdominal Emergencies

AbstractConventional ultrasound imaging (US) is the first-line investigation in acute non-traumatic abdominal emergencies, but sometimes it needs further examinations, such as computed tomography (CT), to reach a certain diagnosis. Contrast-enhanced ultrasound (CEUS), through injection of contrast medium, may provide the radiologist with additional information that could not be investigated with baseline US. It could help reach a diagnosis and rapidly determine the proper therapy in an emergency setting. The purpose of this review is to explain and illustrate the various possibilities and limitations of CEUS in acute non-traumatic abdominal diseases, in particular acute inflammation, parenchymal infarcts, and hemorrhages.

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