Search results for “ultrasonography

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10 articles

Evaluation of Combined Ultrasonography and Cone Beam Computed Tomography for Clinical Imaging: A Negative Results Study

Feb 2026 DOI 10.14302/issn.2576-6694.jbbs-26-5964
Flanagan DennisCorresponding author

The combination of ultrasonography (US) and cone beam computed tomography (CBCT) has been proposed as a multimodal imaging strategy capable of uniting realtime softtissue assessment with highresolution threedimensional visualization of osseous structures. This study critically evaluated whether such integration provides measurable diagnostic or workflow advantages in mandibular imaging. Despite strong theoretical justification, the combined use of US and CBCT failed to demonstrate clinically meaningful improvements in diagnostic accuracy, confidence, or efficiency when compared with CBCT alone. Fundamental physical mismatches, hardware incompatibilities, geometric constraints, and operatordependent variability limited the anticipated synergistic benefits. These negative findings underscore the importance of reporting unsuccessful integration attempts to guide future research and prevent premature clinical adoption of technically incompatible imaging paradigms.

Organ Transplantation Open Access

Comparison the Diagnostic Value of Doppler Ultrasonography to Biopsy, in Evaluation of Post-transplant Complications and Kidney Function

Oct 2022 DOI 10.14302/issn.2576-9359.jot-22-4303
Morteza Bagheri SeyedCorresponding author Department of Radiology, School of medicine, Iran University of Medical Sciences

Background Doppler ultrasonography can evaluate vascular and renal parenchymal disorders. In this study, color Doppler patterns in transplanted kidneys were compared with histological diagnosis to develop diagnostic models for transplanted kidney failure. Method 45 kidney transplant patients participated in this prospective study (16 suffered acute tubular necrosis (ATN), and 29 had transplant rejection). All patients had color-Doppler ultrasonography to measure kidney parameters and Doppler indices. Serum creatinine levels also assessed the transplanted kidney's function. Result Ultrasound showed a significant difference between the two groups in iliac and interlobar PSV. The ROC analysis showed a high diagnostic value of the iliac artery PSV, in distinguishing ATN from kidney transplant rejection. Serum creatinine level correlated directly with transplanted kidney volume, renal cortical thickness, and transplanted kidney length, and inversely with interlobar artery PSV and EDV. In graft rejection patients, the only significant inverse correlation was found between serum creatinine level and PSV of the iliac artery and EDV of the intrelobar artery. Discussion and conclusion The iliac artery PSV can differentiate between ATN and rejection after renal transplantation. Evaluation of renal metric parameters along with PSV and EDV of the interlobar artery (in patients with ATN) and iliac artery and interlobar artery (in transplant rejection) help determine renal dysfunction.

Demonstration of the Capabilities of Transabdominal Ultrasonography in Assessment of Structures and Functional Disorders of Locally Advanced Gastric Cancer of Diverse Localization

Dec 2018 DOI 10.14302/issn.2574-4526.jddd-18-2521
Yagubovich Abdullaiev RizvanCorresponding author Kharkov Medical Academy of Postgraduate Education, Kharkov, Ukraine

Introduction: Ultrasound study of locally advanced gastric cancer that has spread to adjoining tissue and lymph nodes. This tumor can be associated with T2 to T4 stages of cancer. A “Locally advanced gastric cancer” is a tumor, which may be categorized as ‘resectable’ cancer when compared with M1 advanced cancer. Objective: The aim of this study was to evaluate the Capabilities of transabdominal ultrasonography in assessment of structures and functional disorders of the locally advanced gastric cancer of diverse localization Materials and Methods: A total of61 patients with locally advanced gastric cancer were analyzed of which 36 (59,0%) were males (mean age 62.7 years) and 25 (41,0%) were females (mean age 59.3 years). All patients were managed surgically and underwent preoperative X-ray, virtual gastroscopy techniques, multidetector computed tomography and transabdominal ultrasonography (USG). Histopathology results found, in 58 (95,1%) cases adenocarcinoma, in 3 (4,9%) – ring-cell carcinoma (cricoidal) gastric cancer was established. Stage T2 was diagnosed in 16 (26.2%) cases, T3 - in 41 (67.2%) cases, T4 - in 4 (6.6%) cases. The stomach tumor in 29 (47.5%) cases was localized mainly in the antrum, 27 (44.3%) – in the body, 5 (8.2%) in the cardia and fundus (Table 1). In 24 (39,3%) cases, pyloric stenos was diagnosed - of which in 6 (9,8%) it was compensated, in 18 (29,5%) - sub compensated. All patients underwent preoperative X-ray, virtual gastroscopy techniques, multidetector computed tomography and transabdominal ultrasonography (USG). Normal ultrasound features were observed in 35 patients without gastric pathology. Ultrasonography was carried out with the convex and micro convex transducers in the frequency range of 2-5 MHz and 4-7 MHz respectively in B and color Doppler modes. Results: The polypoid type of gastric cancer was detected in 3 (4,9±2,8%) cases, the ulcerative type – in 18 (29,5±5,8%), the infiltrative ulcerative type – in 27 (44,3±6,4%) and the diffuse infiltrative type – in 13 (21,3%±5,2%) cases respectively. In 24 (39,3%) cases, pyloric stenos was diagnosed - of which in 6 (9,8%) it was compensated, in 18 (29,5%) – sub compensated. The layers of the gastric wall were not differentiated in all patients with sub compensated pyloric stenos. The gastric wall thickness of the affected area was 10,2±2,9mm in the case compensated pyloric stenosis, the length was 27,1±6,2mm, the diameter of the pylorus was 8,3±0,8mm. Among patients with sub compensated pyloric stenos, the thickness of the gastric wall was 19,8±4,1mm, the length was 43,6±4,5mm, the pyloric diameter was 4,3±1,1mm. Among the 61 patients studied, pathological vascularization was detected in 42 (68.8%) cases. It was observed that, all 4 (6.5%) patients with gastric cancer were stage T4 and 38 (62.3%) were stage T3. Vascularization was weak in 13 cases, in 24 cases - moderate, and in 5 cases - enhanced. Metastases to the regional lymph nodes were diagnosed in 52 cases. Ultrasonographically, they were detected only in 37 (71.2%) cases. Conclusions: In the diagnosis of locally advanced gastric cancer, ultrasonography demonstrates good capabilities for determining the extent and depth of the affected area. Color doppler mode allows the study of vascularisation of a locally thickened area, as well as nearby enlarged lymph nodes, which is very important to ascertain the degree of malignancy of the hyperplastic process. ltrasonography can independently determine the degree of pyloric stenosis in patients with distal gastric cancer.

A review of ultrasound for the diagnosis of acute appendicitis in adults

Feb 2023 DOI 10.14302/issn.2641-5526.jmid-23-4450
Pather VijayCorresponding author

Acute appendicitis is one of the most common surgical emergencies globally, with a lifetime incidence of 8.6% in men and 6.7% in women. While acute appendicitis should be managed promptly to reduce the morbidity associated with perforated appendicitis, morbidity from negative appendicectomy is similar to morbidity from uncomplicated appendicitis. Computer tomography is widely used to aid in the diagnosis of acute appendicitis, however, is costly, often has a slow turn around time, and is associated with exposure to ionising radiation. In contrast, ultrasound is cheap, widely available, requires minimal patient preparation, and does not require exposure to ionising radiation. Ultrasonography is becoming increasingly used for adult patients in emergency settings. The literature has estimated the sensitivity of ultrasound for acute appendicitis in adult patients as between 39-96.4%. The sensitivity and specificity of ultrasound for the diagnosis of acute appendicitis is significantly increased when the appendix is visualised. In cases of a non visualised appendix, indirect ultrasound signs can improve the sensitivity to 93.9% and specificity to 85.7%. The variation in sensitivity and specificity for ultrasound in the diagnosis of acute appendicitis in adults may be due to multiple factors. Ultrasonographer experience, a retrocaecal appendix and obesity have all been described. Given the availability, cost and potential to reduce the rate of negative appendicectomy, ultrasound should be considered as the first line imaging modality for adult patients presenting with suspected AA.

Abdominal Aortic Aneurysms: Epidemiological, Clinical and Echographic Aspects in The Health Structures of Lomé and At The Kara University Hospital (TOGO)

Jan 2023 DOI 10.14302/issn.2329-9487.jhc-22-4362
PIO MachihudeCorresponding author

Objective To describe the epidemiological, clinical and arterial Doppler ultrasound aspects of abdominal aortic aneurysm (AAA). Material and Methods This is a prospective study with descriptive and analytical aims carried out from January 2019 to March 2022 (3 years) at the cardiovascular exploration center (CEC) "Saint-Esprit" of the association of the people's doctors for the research on cardiovascular diseases (AMP-MCV), at the clinic "Le Printemps" and at the University Hospital of Kara. All patients who underwent arterial Doppler ultrasound of the lower limbs for any reason in these centers during the study period were included. Ultrasound scans were performed or confirmed by a physician with a diploma specializing in vascular Doppler ultrasound. Results We retained 32 Doppler ultrasound scans out of 739 performed for AAA with a frequency of 4.38%. The mean age was 73.5± 9.07 years. The sex ratio M/F was 1.4. The cardiovascular medical history (84.38%) found was: hypertension (33.33%), diabetes (18.52%), dyslipidemia (33.33%) and a combination of diabetes and hypertension (14.81%). The circumstances of discovery were: downstream MI ischemia (72%), incidental finding on abdominal ultrasound (15.63%) and De bakey sign (6.25%). The location of the aneurysms was subrenal (84.4%), suprarenal (9.4%) and both (6.2%). AAAs were fusiform (71.9%) and saccular (28.1%). The size of the aneurysms was greater than 5 cm in 78.17% of patients. High blood pressure increases the probability of the occurrence of subrenal AAA while dyslipidemia increases the occurrence of fusiform AAA. Diabetes increases the probability of occurrence of AAA larger than 7cm. AAAs were thrombosed in 75% of patients. There were extensions of the aneurysms to the iliac arteries in 70.59%. Downstream embolic complications represented 46.88%, in the form of occlusions and tight stenoses. Spontaneous mortality was 81.24%. Conclusion Arterial Doppler ultrasonography is a very important tool in the screening, positive and lesion diagnosis of AAA. The risk factors for AAA are: age over 60 years, male gender, hypertension, diabetes and dyslipidemia. Early detection remains essential, because the spontaneous prognosis is poor.

A Rare Cause of Acute Renal Failure: Retroperitoneal Fibrosis

Nov 2019 DOI 10.14302/issn.2641-5518.jcci-19-3098
Caner EdizCorresponding author Department of Urology, University of Health Sciences (Istanbul), Sultan Abdulhamid Han Education and Research Hospital, Istanbul, Turkey

Idiopathic retroperitoneal fibrosis also known as Ormonds disease is a rare disorder characterized by the development of fibrotic tissue in the retroperitoneum. The fibrotic tissue may compress ureters, leading to obstructive nephrouropathy and renal failure. A 58-year-old man with fatigue, loss of appetite and unable to urinate was admitted to our clinic. Because of the serum creatinine value of 5.3 mg/dl, urinary ultrasonography was performed and bilateral grade 3 hydronephrosis with moderate level urine in bladder was detected. Hydronephrosis did not regress by transurethral foley catheter and suspicious appearance in the retroperitoneal area was found in abdominal magnetic resonance imaging. Tru-cut biopsy result of the current lesion was finally reported as a connective tissue. Bilateral double j catheter insertion was performed and started to immunosuppression therapy with corticosteroid. Two months later, double j catheters were removed and hydronephrosis was not detected in follow-up. In this case report, we tried to explain that, retroperitoneal fibrosis should be considered in the differential diagnosis of postrenal acute renal failure, even in patients without a classic symptom such as pain. In addition, early surgical intervention should be avoided in such patients.

Obesity Management Open Access

Hirsutism and Anthropometric Profiles Among Subjects with Polycystic Ovarian Morphology? A Cross-Sectional Analysis

Sep 2019 DOI 10.14302/issn.2574-450X.jom-19-3000
Hayat Khan SikandarCorresponding author Department of pathology PNS HAFEEZ

Background Polycystic ovarian syndrome (PCOS) is increasingly being diagnosed and treated with sometimes variable lifestyle advice and pharmacological interventions. Obesity is considered as the sole culprit and variable definitions in clinics compound the understanding of pathogenic heterogeneity of this syndrome. We evaluated the differences between various simple to calculate anthropometric indices along with some anthropometric-biochemical equations in subjects with or without PCOS. Objective To compare traditional measures like waist to hip and height ratio (WHpR and WHtR), BMI, newer markers depicting central obesity like Abdominal Volume index(AVI), Body roundness index (BRI), A Body Shape index (ABSI), Conicity index (C-index) along with biochemical-anthropometric equations like lipid Accumulation Products (LAP), Visceral Adiposity Index (VAI) and Chinese Visceral Adiposity Index (CVAI) for diagnosing PCOS as per the Rotterdam criteria Design Cross-sectional analysis Place & Study Duration Naval hospital, Islamabad from Jan- 2018 to July- 2019 Subjects and Methods From our finally evaluated 333 female subjects we initially compared the differences for the presence of hirsutism as per modified Ferrimen Gallwey scores and biochemical hyperandrogenism by measuring free androgen index (Total testosterone/SHBG x 1000. We evaluated waist circumference, BMI, WHpR, WHtR,AVI, BRI, ABSI, C-index along with biochemical-anthropometric equations like LAP, VAI and CVAI for differences in subjects diagnosed to have PCOS by Rotterdam criteria or ultrasonography alone. Results Differences in hirsutism as defined by modified FG score between subjects defined to have PCOS or otherwise as per Rotterdam defined criteria were as [(PCOS=169, Mean=17.33 + 9.05) (No PCOS=164, Mean=8.21 + 5.74), p< 0.001] and ultrasound [(PCOS=87, Mean=16.95 + 9.57) (No PCOS=246, Mean=11.38 + 8.51), p< 0.001]. Similarly, the differences in FAI between subjects defined to have PCOS or otherwise as per Rotterdam criteria and ultrasound were as [(PCOS=169, Mean=6.41 + 4.88) (No PCOS=164, Mean=2.77 + 1.79), p< 0.001] and [(PCOS=87, Mean=5.75 + 5.01) (No PCOS=246, Mean=4.22 + 3.68), p= 0.011]. Anthropometric measures and anthropometric-mathematical equations were raised in non-PCOS subjects than PCOS subjects. Lean-PCOS demonstrated lower degree of hirsutism and biochemical hyperandrogenism in comparison to obese-PCOS. Conclusion Hirsutism and free androgen indices were raised in PCOS females. Anthropometric based measurements were not different in PCOS cases and non-PCOS females. Lean-PCOS demonstrated lower degree of hirsutism and biochemical hyperandrogenism in comparison to obese-PCOS.

Treatment of Chronic Hepatitis B With Tenofovir At The University Teaching Hospital Campus of Lome (Togo)

Aug 2017 DOI 10.14302/issn.2578-2371.jslr-17-1669
Bagny AklessoCorresponding author Departement of gastroenterology, University Teaching hospital Campus of Lomé

Aims: To describe the clinical, biological and evolutionary features of mono infected patients treated with tenofovir in Togo. Method: It is a descriptive, prospective study. Patients were treated with Tenofovir Disoproxil Fumarate (TDF). The inclusion criteria were: active chronic HBV (HBs Ag-positive for more than 6 months, high aminotransferases, the HBV –DNA ≥ 2000 IU / ml for HBeAg negative or ≥ 20 000 IU / ml for HBeAg positive and significant fibrosis) and absence of HCV, HDV, or co-infection HIV. Results: Among patients with HBV in our department, only 10.68% were treated with TDF. The mean age of patients was 33.01±9.81years. There was male predominance (68%). The circumstances of discovery were mainly during blood donation (65.3%) and a routine checkup (14.7%). Clinical examination was normal in most of cases (86.7%) apart from hepatomegaly (9.3%) and icterus (4%).) The HBeAg was negative in 89.3%; the average DNA was 7.56 ±8.01 log10 IU/ml. Abdominal ultrasonography was performed in all patients and we found hepatomegaly (18.67%), splenomegaly (10.67%), and ascites (5.3%). The assessment of fibrosis and activity had enabled to find a fibrosis higher or equal to 2 in 12 cases (48%) and an activity higher or equal to 2 in 9 cases (36%). The clinical and virologic outcome was marked by an undetectable viral load (HBV-DNA˂10 IU/l) in 89.3% of the patients after 1 year of treatment. Conclusion: TDF had helped to find out an undetectable viral load in in 89.3% of the patients after one year of treatment.

Does a Controlled Diet Improve Cellulite?

Jul 2016 DOI 10.14302/issn.2379-7835.ijn-16-986
S Yarak,Corresponding author Universidade Federal de São Paulo, Dermatology Department. 

Abstract: Several researchers have suggested that a targeted diet for reducing theadipose tissue may interfere with the severity of cellulite. Others emphasize that the diet composition seems to play a more relevant role than the calorie profile for weight loss and cellulite control. Objective: The aim of this study was to evaluate the influence of a controlled diet on body composition and cellulite improvement in adult women. Methods: Thirty two healthy women, aged from 25 to 40 were included. They receivedan orientation for a controlled diet to be followed for 3 months. Assessments were performed at the baseline and the end of the study which included four parameters: 1) Photonumeric cellulite severity scale; 2) Anthropometric measuremets 3) Skin elasticity (Cutometer®) and 4) Collagen density or echogenicity and length of the dermis-hypodermis interface line (ultrasonography - DermaScan®). The data was compared with the Paired T-test, Wilcoxon and Pearson's correlation for statistical analyses. Results: Only 14 completed the study. Although the scores of photonumeric scalereduced, there was no difference in the grade of cellulite severity. There were significant reductions in body measurement. The skin elasticity showed no significant change. On the other hand, the dermal density or echogenicity showed a significant increase in the right and left sides (p = 0.05 and p = 0.005, respectively); however, no difference was observed in the lenght of dermis-hypodermis line. Conclusion: the controlled diet was effective for the reduction of weight and body composition, but despite the increase in dermal collagen density, no clinical effect on cellulite could be detected.

Vascular Damage in Newly Diagnosed Young Hypertensive Patients, Assessed by Carotid Intima Media Thickness: An Indian Perspective

Nov 2013 DOI 10.14302/issn.2329-9487.jhc-13-253
Singla RohitCorresponding author M.B.B.S. M.D. medicine. D.M. cardiology resident doctor at SMS hospital, Jaipur

Background: Western studies have shown that hypertension increases carotid intima media thickness (cIMT) as early as in childhood and adolescence. However, similar data from India is lacking. Indians have different genetic, racial, geographic, cultural and dietary patterns. Hence a similar trend may not be experienced among young Indian subjects. Methods: 46 young cases (age 16 – 35 years) of hypertension were recruited along with age, sex and BMI matched controls. Patients with body mass index (BMI) >25 kg/m2, diabetes mellitus and secondary causes of hypertension were ruled out. All patients underwent carotid ultrasonography for assessment of cIMT. Results: Mean age and BMI of cases was 25.4 years and 20.89 kg/m2 respectively. 67.4% were male. For all of the subjects combined (n=92), cIMT correlated with BMI (r = 0.244; P=0.019), office systolic blood pressure (SBP) (r = 0.556; p<0.001) and office diastolic blood pressure (DBP) (r =0.426; p<0.001). Among hypertensive subjects (n=46), there was a significant positive correlation between cIMT and SBP (r=0.611, p<0.001). In contrast to SBP, DBP correlated insignificantly with cIMT (r= 0.217; p = 0.14) in the hypertensive subjects. Conclusion: Elevated blood pressure, especially systolic, correlates with increased cIMT among young Indian hypertensives. This provides strong evidence that primary hypertension in early life also is associated with vascular pathology, independent of the effects of obesity and diabetes

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