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Application Advances of Contrast-enhanced Ultrasound in Clinical Diagnosis and Treatment
Zhou Xiaoyu,
Peng Changfu
Issue:
Volume 9, Issue 2, June 2021
Pages:
98-103
Received:
5 April 2021
Accepted:
15 April 2021
Published:
23 April 2021
Abstract: Because the affected parts of some tumors and diseases are generally hidden, some are deeper, and the tissue structure is more complex and diverse, misdiagnosis and missed diagnosis are very easy to occur in the process of clinical diagnosis. In addition, the development of various diseases and tumors is closely related to the quality of life and prognosis of patients. Therefore, the diagnosis and treatment of diseases and monitoring after treatment are particularly important for patients. Ultrasound is easy to operate, non-invasive, and can be observed in real time. Ultrasound is the most used Frequent imaging diagnostic tools. In recent years, contrast-enhanced ultrasound (CEUS), as a newly developed imaging technology, has made important progress in ultrasound examination. In particular, the second-generation microbubble (MB) contrast agent in contrast-enhanced ultrasound (CEUS) has been widely used in clinical practice. It can observe the whole process of organ and tumor microcirculation blood perfusion in real time and continuously, not only The morphological characteristics of the lesion can also provide the blood flow characteristics of the lesion, which improves the ability of the ultrasonic diagnostic instrument to display the blood flow in the lesion. Due to its non-invasiveness, real-time and safety, contrast-enhanced ultrasound technology provides safe, effective and valuable diagnostic and treatment options for ophthalmology, liver, gastrointestinal tract, heart, pediatrics and other fields. This article briefly reviews the origin and development of contrast agent ultrasound, basic principles, safety, the application of contrast-enhanced ultrasound in clinical diagnosis and treatment, and the advantages and disadvantages of contrast-enhanced ultrasound, and discusses its future development and limitations for pre-clinical surgery The qualitative diagnosis, selection of surgical methods and prognostic judgment and evaluation provide more accurate and comprehensive information in order to better serve and treat clinical diagnosis.
Abstract: Because the affected parts of some tumors and diseases are generally hidden, some are deeper, and the tissue structure is more complex and diverse, misdiagnosis and missed diagnosis are very easy to occur in the process of clinical diagnosis. In addition, the development of various diseases and tumors is closely related to the quality of life and p...
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Measurement of the Angle Between the Superior Mesenteric Artery and the Aorta: Correlation with Body Mass Index
Raza Sayani,
Mustafa Belal Hafeez Chaudhry,
Mohammad Hasan,
Ali Janjua,
Irfan Nazir,
Kumail Khandwala
Issue:
Volume 9, Issue 2, June 2021
Pages:
104-108
Received:
24 February 2021
Accepted:
11 May 2021
Published:
20 May 2021
Abstract: Objective: To discover the mean figures of the distance and angle between the superior mesenteric artery (SMA) and the aorta in four standard acknowledged body mass index (BMI) classifications in an ordinary populace and for the two genders, to work with a computed tomography CT based finding of Superior mesenteric artery syndrome (SMAS). Methods: A retrospective cross-sectional study was performed on 338 (157 female, 181 male) patients who were referred for abdominal CT examination. Age, sex, weight and height of all patients were noted, and the BMI was calculated. The distance between the SMA and aorta were measured, as was the angle. Pearson and Spearman correlation coefficients were used to correlate distance and BMI category, angle and BMI category, anteroposterior abdominal distance and SMA angle with aortomesenteric distance. Results: The mean BMI of patients in our study was 27.95 kg/m2 while the mean SMA angle, mean anteroposterior abdominal wall distance and mean aortomesenteric distance was 58.74 degrees, 224.35 cm, and 18.98 cm, respectively. The results showed positive correlation of BMI and anteroposterior abdominal distance with SMA angle and distance. This means if BMI increases, SMA angle and aortomesenteric distance will also increase, and vice versa. This same relationship was also valid for anteroposterior abdominal distance with aortomesenteric angle and distance. Conclusion: Our study helps in stating the values of aortomesenteric distance and angle for different BMI categories that can be used in CT-based diagnosis of SMAS in a South Asian population. The values we found for different BMI categories can be used by radiologists as a reference standard.
Abstract: Objective: To discover the mean figures of the distance and angle between the superior mesenteric artery (SMA) and the aorta in four standard acknowledged body mass index (BMI) classifications in an ordinary populace and for the two genders, to work with a computed tomography CT based finding of Superior mesenteric artery syndrome (SMAS). Methods: ...
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The Influence of Quantitative Parameters Measured on CT with Different Slice Thicknesses on Evaluating the Growth of Pulmonary Nodules
Jannatul Maoya Bashanti,
Binjie Fu,
Wang Jia Li,
Mohammad Arman Hossain,
Fajin Lv
Issue:
Volume 9, Issue 2, June 2021
Pages:
109-116
Received:
30 April 2021
Accepted:
18 May 2021
Published:
26 May 2021
Abstract: We did this study to investigate the effect of thick (5mm) and thin (1 or 0.625 mm) slice thickness of CT images on evaluating pulmonary nodules' growth to improve their diagnostic accuracy. The clinical and CT data of 251 patients with lung nodules and two follow-up CTs from October 2016 to October 2019 were analyzed retrospectively. Malignant nodules were confirmed by pathology, and benign nodules were confirmed by pathology or follow-up. Two radiologists double-blindly assessed the CT features (density, shape, lobes, border), maximum diameter, and volume of nodules on the thick (5MM) and thin (≤1MM) images of two follow-up CTs. We use One-way analysis of variance for quantitative data; the X2 test or FISHER exact probability method was used for qualitative data; and the ROC curve was used to analyze the diagnostic power of nodule size, volume, and change in differentiating benign and malignant lesions. Among 251 pulmonary nodules, 117 (46.6%) benign nodules and 134 (53.3%) malignant nodules. During the CT follow-up, the volume measured on the thick-section image, the diameter, and the volume measured on the thin-section image were statistically different in benign and malignant lung nodules (P<0.001). In contrast, the diameter measured on the thick-section image was similar between these two groups (P=0.328). For benign and malignant pulmonary nodules, the diameter, volume, and change measured on the thin-section image were significantly larger than the thick-section image's data (P<0.001). The ROC curve showed that the diagnostic efficiency of volume was higher compared to the diameter. There were significant differences in nodule type, density change, shape, lobulation, and pleural retraction between benign and malignant nodules for CT features. Accurately assessing the volume changes combined with CT characteristics will help improve lung nodules' diagnosis accuracy. Volume measured on thin-section (1mm) CT images is the best quantitative parameter for assessing the change of pulmonary nodules. Combining Volume change with CT characteristics would help to improve the diagnostic accuracy.
Abstract: We did this study to investigate the effect of thick (5mm) and thin (1 or 0.625 mm) slice thickness of CT images on evaluating pulmonary nodules' growth to improve their diagnostic accuracy. The clinical and CT data of 251 patients with lung nodules and two follow-up CTs from October 2016 to October 2019 were analyzed retrospectively. Malignant nod...
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The Role of Transrectal Power Doppler Ultrasonography in Detection of Prostate Cancer
Saiful Islam,
Tarikul Islam,
Halima Khatun,
Anisur Rahman
Issue:
Volume 9, Issue 2, June 2021
Pages:
117-122
Received:
22 February 2021
Accepted:
26 April 2021
Published:
3 June 2021
Abstract: Introduction: Prostatic cancer is the fourth most common male malignancy worldwide. It is the commonest human cancer found at autopsy in 30% of men at age of 50 and almost 90% at age 90. To decrease the mortality caused by prostate cancer much attention has given to its early detection. power Doppler imaging (PDI) appeared to increase the sensitivity and help identify appropriate sites for biopsy. Aim of This Study: The aim of this study was to determine the role of Transrectal Power Doppler ultrasonography in the diagnosis of prostate cancer. Methods: This was a cross-sectional study and was conducted in Urology Department of Bangladesh Institute of Research and Rehabilitation of Diabetes, Endocrine and Metabolic Disorders (BIRDEM), Bangabandhu Sheikh Mujib Medical University (BSMMU) and Dhaka Medical College hospital (DMCH), Bangladesh during the period from July 2005 to June 2007. 36 patients were included in the study. Statistical analysis of the results was done by computer software devised in the statistical packages for social scientist (SPSS-10) and MS excel-16. Result: In total 36 patients Among the 36 patients, 16 cases were benign and 20 cases were malignant lesion detected by histopathological findings. In our study we found the validity of Transrectal power Doppler in detecting prostate cancer were evaluated by calculating sensitivity 90.0%, specificity 75.0%, accuracy 83.3%, positive and negative predictive values were 81.8% and 85.7% respectively. Conclusion: As the histopathological diagnosis of the present study significantly correlate with Transrectal power Doppler findings and the validity tests are almost identical as observed by other researchers of different study, it can be concluded that Transrectal power Doppler ultrasonogram is useful diagnostic modality in the discrimination of benign and malignant lesions in the prostate.
Abstract: Introduction: Prostatic cancer is the fourth most common male malignancy worldwide. It is the commonest human cancer found at autopsy in 30% of men at age of 50 and almost 90% at age 90. To decrease the mortality caused by prostate cancer much attention has given to its early detection. power Doppler imaging (PDI) appeared to increase the sensitivi...
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Elastosonography in the Characterization of Breast Masses in Black Women in Lomé (Togo)
Tchaou Mazamaesso,
Ndakne Motchelaho Laurence Agnes,
Gbande Pihou,
Dagbe Massaga,
Agoda-Koussema Lama Kegedigoma,
Adjenou Komlanvi
Issue:
Volume 9, Issue 2, June 2021
Pages:
123-129
Received:
4 May 2021
Accepted:
31 May 2021
Published:
7 June 2021
Abstract: Objective: study the contribution of elastosonography in the characterization of breast masses. Methods: a prospective and descriptive study took place over a period of 6 months from February to July 2020 in the department of radiology of the Sylvanus Olympio teaching hospital in Lomé. Patients presenting a breast mass diagnosed by the conventional ultrasound were invited to take part in the study. Result: in total, fifty-four patients met our selection criteria, for an overall frequency of 2.9%. The average age of our patients was 24.2 years old with the 20-29 years age group being the most represented. The mean lesion size was 18.8mm with extremes of 5 and 35mm. The lesions classified as Birads 3 were the most prevalent (40.4%) and they all had an elasticity score of less than 3. 75% of the lesions classified as Birads 4 also had an elasticity score less than 3. All lesions classified as Birads 5 had an elasticity score greater than 4. We obtained a statistically significant relationship between the Birads classification and the elastographic score and also by differentiating the mammary masses into benign and malignant lesions by these two modalities. Conclusion: elastosonography is a diagnostic imaging method that allows rapid and easy evaluation of breast lesions and it provides a valuable addition to the ultrasound data in real-time. It provides complementary diagnostic information that could potentially assist in the characterization of breast lesions by B-mode ultrasound.
Abstract: Objective: study the contribution of elastosonography in the characterization of breast masses. Methods: a prospective and descriptive study took place over a period of 6 months from February to July 2020 in the department of radiology of the Sylvanus Olympio teaching hospital in Lomé. Patients presenting a breast mass diagnosed by the conventional...
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