Browsing by Author "Akdemir, Z."

Now showing 1 - 4 of 4

Contribution of Sonoelastography in the Differentiation of Benign and Malignant Breast Masses: a Comparative Analysis on Sonographic Birads Classification
(Yuzuncu Yil Universitesi Tip Fakultesi, 2017) Arslan, H.; Akdemir, Z.; Yavuz, A.; İslamoglu, N.; Çelik, S.; Özgökçe, M.; Tolunay, H.E.
In this study, we aimed to investigate the effectivity of ultrasonographic elastography in the differentiation of benign and malignant lesions detected on B-mode ultrasonography. The retrospective study included 133 consecutive patients who underwent B-mode USG followed by elastography between January 2013 and December 2015. The lesions were scored by using B-mode USG with breast imaging-report and data systems (BIRADS) and then sonoelastographic color-coded maps were obtained by elastography in a single session. Sonoelastographic scoring was achieved with a 5-point scoring system. Elasticity scores and strain ratio (SR) values were compared with histopathological findings. The 133 patients included 132 (99.2%) women and 1 (0.8%) man. Mean age was 40.45±14.8 years. The lesions were mostly localized in the left breast (n=70, 52.3% vs. n=63, 47.7%). Depending on the pathological findings, 94 (71.2%) lesions were classified as benign and 39 (28.8%) as malignant. Mean SR value was 4.419±1.43, with 5.5 in malignant lesions and 4.3 in benign lesions. At the cut-off value of 4.95 for SR, the sensitivity and specificity of USG in elastographic examination were 81.6% and 78.7%, respectively. A significant correlation was found between the SR value and the BIRADS score calculated on USG (rho=0.86; two-tailed; p<0.001). Similarly, a significant correlation was found between the SR value and the elasticity score (rho=0.88; two-tailed; p<0.001). In conclusion, the use of sonoelastographic examination following the USG examination with B-mode ultrasonography can be a complementary diagnostic method that increases the specificity of USG. Moreover, it can also reduce unnecessary biopsies in lesions with suspicious malignancy. © 2018, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Measurement of Postoperative Liver Volume Changes in Patients With Gastric Cancer by Computed Tomography
(Yuzuncu Yil Universitesi Tip Fakultesi, 2023) Yokuş, A.; Arslan, H.; Akdemir, Z.; Akbudak, İ.; Almalı, N.; Kotan, Ç.; Doğan, E.
One of the most prevalent cancer worldwide is gastric cancer. Surgical treatment is the only curative method. In this study, we aimed to investigate the changes in liver volume before and after open gastrectomy in patients diagnosed with gastric cancer. We retrospectively analyzed the computed tomography scans of 70 patients who underwent gastric cancer surgery between June 2013 and December 2020. Preoperative and postoperative total liver volume, the volume of segments II-III, and segment IV were measured. The data obtained from volume measurements were compared statistically. Of the 70 subjects included in the study, 48 were male and 22 were female, with an average age of 64.2±11.8 years. In the postoperative phase, the volume of segments II-III and IV dropped significantly compared to the preoperative period (p=0.001 for both). Total liver volume exhibited a mild decrease in the postoperative period, but the total volume loss was not statistically significant (p=0.744). In this study, we detected significant volume loss in segments II-III and segment IV after open gastrectomy. However, the total liver volume reduction was less. © 2023, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Mesenteric Artery Embolism During Coronavirus Disease-19 (covid-19) İn a Patient Previously Diagnosed With Fabry: a Case Report
(Yuzuncu Yil Universitesi Tip Fakultesi, 2023) Aladağ, N.; Akdemir, Z.; Çallı, I.
We report a unique case of superior mesenteric artery embolism that developed in a patient with COVID-19 who was followed up with the diagnosis of Fabry Disease. On the 12th day of COVID-19 illness, atrial fibrillation and superior mesenteric artery embolism were detected in a 56-year-old male patient who was previously diagnosed with Fabry Disease. We did not find a similar patient in the literature. In the coexistence of Fabry Disease and COVID-19, risk of arrhythmia such as atrial fibrillation, which is the most common arrhythmia in both diseases, increases further. COVID-19 can cause arterial and venous thrombosis. In the coexistence of Fabry Disease and COVID-19, care should be taken against increased thrombogenicity, arrhythmia (such as atrial fibrillation) and thromboembolism that may develop due to them. © 2023, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
The Role of the Virtual Touch Tissue Quantification Technique in Differentiating Between Benign Prostatic Hyperplasia and Prostatic Carcinoma
(Yuzuncu Yil Universitesi Tip Fakultesi, 2023) Akdemir, Z.; Yokuş, A.; Taken, K.; Alpaslan, M.; Arslan, H.; Akdeniz, H.
Virtual Touch Tissue Quantification (VTTQ) is a promising new implementation of the acoustic radiation force pulsed ultrasound technique that has gained popularity in recent years. The present study compares the performance of the VTTQ technique in distinguishing between prostate cancer (PCa) and benign prostatic hyperplasia (BPH). VTTQ was performed on 91 prostate nodular lesions in 72 patients with BPH and suspected PCa prior to a prostate histopathologic examination, while 35 healthy volunteers were included in the study as controls. The mean shear wave velocity (SWV) values of the central and peripheral prostate zone were measured in the healthy volunteers, with the SWV at each nodular lesion quantified through the implementation of an acoustic radiation force impulse (ARFI). The performance of VTTQ in discriminating between PCa and BPH was compared, and the diagnostic value of VTTQ for PCa was evaluated in terms of sensitivity, specificity and cut-off value. Histopathological examinations detected PCa in 21 of the 91 nodular lesions and BPH in 70. The SWV values (m/s) were significantly higher in prostate cancer than in the BPH and central-peripheral prostate zones (3.85±0.78, 2.29±1.03, 1.65 ±0.95, 1.14±0.56). The mean SWV values of the central-peripheral prostate zones were found to be significantly different from each other. We determined an SWV cut-off value of 3.09 m/s for differentiating between benign and malignant nodules, with a sensitivity and specificity of 90.5% and 80%, respectively. VTTQ can effectively determine the stiffness of prostate nodular lesions, with significantly higher performance discrimination between PCa and BPH. © 2023, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.