PERBEDAAN INFORMASI CITRA ANATOMI SEKUEN DIFFUSION WEIGHTED IMAGING (DWI) ANTARA PENGGUNAAN PROPELLER DENGAN TANPA PROPELLER PADA PEMERIKSAAN MRI BRAIN DENGAN KASUS STROKE

Background: Stroke is a brain disease where an acute nerve function is occurred due to the cerebral vascular disorders. To establish a diagnosis the stroke, it can be identified by employing the Diffusion Weighted Imaging (DWI) sequence in the MRI examination. Artifacts still exist on the MRI image which in turn reduce the resolution when using the DWI sequence. Adding the PROPELLER data acquisition method in the DWI sequence possibly improves the quality of brain images. The purpose of this study is to know the difference on the quality of anatomical image information between the DWI sequences with PROPELLER and without PROPELLER methods, and to determine adequate anatomical image appearance that created in amongst of the two methods, specifically for the stroke disease.Methods: this research is quantitative research with experimental approach. This study was conducted using MRI 1.5 T at Bethesda Hospital Yogyakarta. Data were 16 images from 8 patients using DWI sequences using PROPELLER without PROPELLER on MRI Brain examination with stroke. The results of the image were evaluated on 7 criteria: cortex cerebri, basal ganglia, thalamus, pons, cerebellum, stroke (infarction) and artifacts using questionnaires given to 3 respondents. Data analysis was done by Wilcoxon test to know the difference of anatomical image information on DWI sequence using PROPELLER without PROPELLER and to know better anatomical image information from both sequences seen from mean rank value.Results: The results shown, there is a significant difference on the quality of anatomical image information and the artifacts between the use of DWI sequence with and without PROPELLER methods ( 0.05). Based on the mean rank results, the DWI PROPELLER sequence has a higher mean rank value 4.50 compared to the DWI sequence without PROPELLER 0.00.Conclusions: The DWI PROPELLER sequence has better image results compared to the DWI sequence without PROPELLER.

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The Correlation between Diffusion-Weighted Imaging and Histopathological Evaluation of 356 Prostate Biopsy Sites in Patients with Prostatic Diseases

ISRN Urology ◽

10.5402/2012/252846 ◽

2012 ◽

Vol 2012 ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

R. Kilinç ◽

O. G. Doluoglu ◽

B. Sakman ◽

D. S. Ciliz ◽

E. Yüksel ◽

...

Keyword(s):

Prostate Biopsy ◽

Diffusion Weighted Imaging ◽

Definitive Treatment ◽

Apparent Diffusion Coefficients ◽

Prostate Biopsies ◽

Diffusion Weighted ◽

Significant Difference ◽

Adc Values ◽

The Difference ◽

Prostatic Diseases

Purpose. The aim of this study is to investigate the reliability of diffusion MRI for detection of cancer foci by comparing diffusion-weighted imaging (DWI) results and pathology results of prostate biopsy sites. Methods. Of the patients who applied with lower urinary tract symptoms, 36 patients who had suspected DRE and/or PSA ≥2.5 ng/mL were included in the study. Patients underwent DWI prior to 10 cores-prostate biopsy. 356 biopsy cores were obtained from the patients. Foci from the patients with prostate cancer were labeled as malignant or benign foci, likewise foci from the patients with benign pathology were grouped as BPH and inflammation foci. Apparent diffusion coefficients (ADCs) of biopsy groups were compared with each other in order to measure the reliability of DWI in detection of PCa foci. Results. When ADC values of adenocarcinoma foci and BPH foci were compared, a statistically significant difference was found (P<0.001). When ADC values obtained from adenocarcinoma foci and chronic inflammation foci are compared, the difference between two groups is statistically significant, too (P<0.001). Conclusions. Biopsies focused on suspected regions after formation of ADC maps by means of DWI would provide to start definitive treatment immediately as well as being beneficial to prevent morbidity related to repeated prostate biopsies.

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The Image Information Of Mri Brain In Axial Diffusion Weighted Image (Dwi) With Variation B Value In Ischemic Stroke

International Journal of Health Science and Technology ◽

10.31101/ijhst.v2i1.1825 ◽

2021 ◽

Vol 2 (1) ◽

Author(s):

Siti Masrochah ◽

Yeti Kartikasari ◽

Ayu Mahanani

Keyword(s):

Ischemic Stroke ◽

Quantitative Research ◽

B Value ◽

Axial Plane ◽

Diffusion Weighted Image ◽

Image Information ◽

Weighted Image ◽

Mri Brain ◽

Diffusion Weighted ◽

Brain Examination

The purpose of the research is to identify the differences between image information of MRI Brain in axial plane Diffusion Weighted Image (DWI) sequence and variation b value in case ischemic stroke, and to determine optimal b value in examination MRI Brain in case Ischemic Stroke. This research was a quantitative research with experimental approach. This research was done in Panti Rapih Hospital, Yogyakarta and used 8 ischemic stroke patients with 3 variasion b value (500s/mm2, 1000 s/mm2, 1500 s/mm2) and 3 radiologists as respondents. The data were analyzed using Friedman test. Result showed that there was difference between image information of MRI Brain in axial plane Diffusion Weighted Image (DWI) sequence and variation b value in case ischemic stroke with p0.05 which means there is a difference between Basal Ganglia, Cerebellum, and the border of the infarction. Meanwhile, Cortex Cerebri, Thalamus and Pons obtained no difference in image information and the optimal b value for MRI Brain examination of ischemic stroke 1500 s/mm2. Based on the result there was a difference between image information of MRI Brain in axial plane Diffusion Weighted Image (DWI) sequence and variation b value in case ischemic stroke. Optimal value of variation b value for MRI Brain examination of ischemic stroke was 1500 s/mm2.

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Analisis Informasi Citra Anatomi Pemeriksaan MRI Shoulder Joint antara Posisi Pasien Netral dan “Abduction and External Rotation” Menggunakan Sekuen Gradient Echo T2*

Jurnal Imejing Diagnostik (JImeD) ◽

10.31983/jimed.v3i2.3195 ◽

2017 ◽

Vol 3 (2) ◽

pp. 253-257

Author(s):

Rini Indrati ◽

Siti Masrochah ◽

Made Nia Cahya Dewi

Keyword(s):

Rotator Cuff ◽

Shoulder Joint ◽

External Rotation ◽

Joint Space ◽

Wilcoxon Test ◽

Neutral Position ◽

Gradient Echo ◽

Image Information ◽

Significant Difference ◽

Anatomical Image

Background : Has conducted a study of differences in anatomical image information on sequences Gradient Echo T2* to the neutral position and the Abduction and External Rotation in Radiology Panti Rapih Yogyakarta Hospital. Abduction and External Rotation positions are positions that obtained when the patient is in the supine position with the hands under the head, resulting in external rotation and abduction of the humerus. This position is useful to show the subtle picture of the infraspinatus tendon and anterior labrum is normal and can detect abnormalities of the rotator cuff. The neutral position is a position that is obtained when the patient supine with the shoulder and arm parallel to the body with a neutral or slightly towards the external rotation. The purpose of this study is to determine the difference and which one is a better position to produce anatomical image information between sequences Gradient Echo T2* with a neutral position and Abduction and External Rotation MRI of shoulder joint.Methods : This research is a quantitative research with experimental approach. The study was conducted at Radiology Installation Panti Rapih Yogyakarta Hospital, the data in the form of 10 image sequences Gradient Echo T2* use a neutral position and 10 image sequences Gradient Echo T2* use position Abduction and External Rotation MRI of shoulder joint of 10 volunteers. Ratings are subjective images of the two respondents include the glenoid labrum, rotator cuff, joint space, border line and fluid in accordance with the level of clarity. Analysis of the data from the second respondent in kappa test (Realibility inter observer) to determine the level of common perception (measure of agreement) of the respondents after the data is selected from one of the respondents and the wilcoxon test for the presence or no difference between the two positions.Result : Results wilcoxon test in this study expressed a significant difference between the neutral position and the position of Abduction and External Rotation in total one image (the value of ρ 0.001), and percriteria namely the glenoid labrum (value ρ: 0,025), rotator cuff (the value of ρ: 0,008 ), joint space (value ρ: 0,025), borderline (value ρ: 0,005), and fluid (value ρ: 0,014), of the value of ρ total of one image with a value of ρ percriteria can be concluded that the sequences Gradient Echo T2 * use position Abduction and External Rotation can generate image information of shoulder joint anatomical MRI better than on sequences Gradient Echo T2* use a neutral position.Conclusion : There was a significant difference in the overall image information between the Gradient Echo T2* sequences using neutral position and Abduction and External Rotation position in total image with a p-value of 0.001 (p0.05).

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Analisis Informasi Citra Anatomi antara Teknik Breath-Hold dan Trigger pada Pemeriksaan Magnetic Resonance Cholangiopancreatography (MRCP) Menggunakan Sequence T2 Half Fourier Acquisition Single Shot TSE (HASTE) Coronal Slab

Jurnal Imejing Diagnostik (JImeD) ◽

10.31983/jimed.v2i1.3163 ◽

2016 ◽

Vol 2 (1) ◽

pp. 92-96

Author(s):

Yusron Adi Utomo ◽

Bambang Satoto ◽

Rini Indrati

Keyword(s):

Magnetic Resonance ◽

Quantitative Research ◽

Magnetic Resonance Cholangiopancreatography ◽

Wilcoxon Test ◽

Breath Hold ◽

P Value ◽

Single Shot ◽

Image Information ◽

The Difference ◽

Research Type

Background: There are two image acquisition techniques in MRCP examination, which are breath-hold and trigger technique. Acquisition process in breath hold occurs when the patient holds their breath, meanwhile trigger technique uses respiratory gatting that functioned to monitor patient’s respiration and the acquisition occurs in the transition phase of inspiration and expiration. In Royal Taruma Jakarta Hospital this two technique are used sustainably, but in other hospital, such as Hasan Sadikin Bandung Hospital just uses one technique. This research aims to know the difference of anatomic image information of breath-hold and trigger technique in MRCP examination using T2 HASTE sequence coronal slab and to know which examination technique is better to produce anatomic image information between breath-hold and trigger technique.Methods: This research type was quantitative research with the observational approach. The data obtained by scanning 10 patients using breath-hold and trigger technique in Royal Taruma Jakarta Hospital. The image result was scored by radiology physician using checklist. The obtained data was analyzed with Wilcoxon test to know the difference of anatomic image information and which technique is better to produce anatomic image information between breath-hold and trigger technique.Results: The result showed that there were differences of anatomic image information of breath-hold and trigger technique on MRCP examination using T2 HASTE sequence coronal slab with p-value 0,011. Trigger technique produced better anatomic image information than breath-hold technique.Conclusion: There were differences of anatomic image information of breath hold and trigger technique on MRCP examination using T2 HASTE sequence coronal slab. Trigger technique produced better anatomic image information than breath-hold technique

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Analisis Informasi Citra Anatomi Antara Penggunaan Aplikasi Constance Level Appearance (CLEAR) dan Non CLEAR Pada Pemeriksaan MRI Cervical Irisan Sagital T2WI FSE Kasus HNP

Jurnal Imejing Diagnostik (JImeD) ◽

10.31983/jimed.v1i2.3160 ◽

2015 ◽

Vol 1 (2) ◽

pp. 82-85

Author(s):

Dea Febri Mardiyanti ◽

Sugiyanto Sugiyanto ◽

Yeti Kartikasari

Keyword(s):

Quantitative Research ◽

Experimental Approach ◽

Wilcoxon Test ◽

Rank Test ◽

P Value ◽

Image Information ◽

Mri Examination ◽

Anatomical Image

Background: This study aims to determine the anatomical image information between using CLEAR aplication and without CLEAR (Non CLEAR) aplication on cervical MRI examination with T2WI FSE sagital HNP case and to determine which is the best image between using CLEAR aplication and Non CLEAR aplication on cervical MRI examination with T2WI FSE sagital HNP case.Methods: This research was a quantitative research with an experimental approach Subjects of this study were eight patients in Siloam Lippo Village Hospital. Images resulted was assessed by radiology physician using questionnairs. Data were analyzed using Wilcoxon test to determine differences of image information and using mean rank test to determine the best image between using CLEAR application and without CLEAR aplication.Results: This study showed that there were differences anatomical image information between using CLEAR application and without CLEAR aplication on cervical MRI examination with T2WI FSE sagital HNP case, with p = 0,000 (p value 0,05). Cervical MRI examination with CLEAR aplication T2WI FSE produced the best image with the sum of the rank was 300,00 on the negative rank which showed that the image information without CLEAR aplication T2WI FSE lower than image information with CLEAR aplication T2WI FSE.Conclusion: There were differences the anatomical image information between using CLEAR application and without CLEAR aplication on cervical MRI examination with T2WI FSE sagital HNP case.

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Perbedaan Informasi Anatomi Sekuen T1WI FSE dengan Fat Saturasi dan Tanpa Fat Saturasi pada Pemeriksaan MRI Kepala Irisan Axial Post Media Kontras

Jurnal Imejing Diagnostik (JImeD) ◽

10.31983/jimed.v3i1.3181 ◽

2017 ◽

Vol 3 (1) ◽

pp. 180-185

Author(s):

Dwi Kristiyanto ◽

Mohamad Irwan Katili ◽

Emi Murniati

Keyword(s):

Quantitative Research ◽

Wilcoxon Test ◽

P Value ◽

Post Contrast ◽

Fat Saturation ◽

Significant Difference ◽

The Difference ◽

Anatomical Mri ◽

Anatomical Information ◽

Axial Slice

Background: MRI of head post contrast media T1WI with Fat saturation the lesions appear bright whereas the organs around the fat looks darker. The purpose of this study was determine the difference in anatomical information of MRI Head FSE sequences T1 weighted axial slice using fat saturation and without fat saturation.Methods: This research is a quantitative research to determine differences in anatomical MRI information head with FSE sequences T1 weighted axial slice using Fat Fat Saturation Saturation and without air MRI on 1.5 T. The results are summarized and described to determine the value of anatomic information. Then proceed with the Wilcoxon test to see differences in anatomical information on T1 weighted MRI with Chief FSE And without Fat Fat Saturation Saturation.Result : The results obtained results description clearer criteria on the use of Fat Saturation is a pathological lesions without Fat Saturation is the maxillary sinus, orbit, skull base, CSF, Sulcus gyrus, cutis and sub cutis. For the p value is 0.108 (p 0.05) there was no significant difference MRI anatomical information chief weighted FSE T1 sequence axial pieces with Fat Saturation and without Fat SaturationConclusion : : From the analysis of quantitative seen that there are no differences in the anatomy of the head of information at the head MRI examination (p 0.05) between Fat saturation and Non Fat Saturation.

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Role of Quantitative Diffusion-Weighted Imaging in Differentiating Benign and Malignant Orbital Masses

Indian Journal of Radiology and Imaging ◽

10.1055/s-0041-1730120 ◽

2021 ◽

Author(s):

Preeti Mundhada ◽

Sudarshan Rawat ◽

Ullas Acharya ◽

Dhananjay Raje

Keyword(s):

Roc Curve ◽

Diffusion Weighted Imaging ◽

Care Hospital ◽

Adc Value ◽

Diffusion Weighted ◽

Significant Difference ◽

Orbital Masses ◽

Adc Values ◽

Orbital Lesions

Abstract Aim To determine the role of diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) values in differentiating benign and malignant orbital masses. Materials and Methods After obtaining institutional ethical board approval and informed consent from all patients, an observational study was done for a period of 24 months in the radiology department of a tertiary care hospital in South India. Conventional magnetic resonance imaging and DWI using a 3T scanner was done for all patients with suspected orbital mass lesion. ADC value and clinicohistopathological correlation were studied for every patient. Chi-square test was used to compare the signal characteristics of DWI and ADC maps between benign and malignant lesions. A comparison of mean ADC values for benign and malignant masses was performed using Student’s t-test for independent samples. The cut-off value for ADC was obtained using the receiver operating characteristic (ROC) curve. Results Of 44 patients with orbital lesions, 70% were benign and 30% were malignant. There was a significant difference in the mean ADC values of benign and malignant orbital masses. Using ROC curve analysis, an optimal ADC threshold of 1.26 × 10−3 mm2/s was calculated for the prediction of malignancy with 100% sensitivity, 80.65% specificity, and 86.36% accuracy (95% confidence interval: 0.872, 1.00, p < 0.0001). Two ADC thresholds were used to characterize the orbital masses with more than 90% confidence. Conclusion Quantitative assessment of ADC is a useful noninvasive diagnostic tool for differentiating benign and malignant orbital masses. Malignant orbital lesions demonstrate significantly lower ADC values as compared with benign lesions.

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Speech Methodologies in Cleft Palate Assessment: A Pilot Project to Compare Two Phonetically Different Sentence Sets

Journal of Clinical Speech and Language Studies ◽

10.3233/acs-2013-20106 ◽

2013 ◽

Vol 20 (1) ◽

pp. 49-72

Author(s):

Jennie Smith ◽

Tim Pring ◽

Debbie Sell

Keyword(s):

Cleft Palate ◽

Pilot Project ◽

Wilcoxon Test ◽

Consecutive Series ◽

Video Recordings ◽

Significant Difference ◽

The Difference ◽

Audio Video ◽

Age Range ◽

The Impact

Objective: To investigate the impact of the phonetic content of two sentence sets on speech outcomes, specifically the effects of nasal phonemes. Method: Audio-video recordings of a consecutive series of 15 participants (age range 4–22 years), with cleft palate (syndromic or non-syndromic), with and without velopharyngeal dysfunction were taken. Participants repeated Sentence Set 1 (with nasals across sentences) and Sentence Set 2 (without nasals except the three nasal target sentences) during a routine speech recording. Two experienced Specialist Speech and Language Therapists, blinded to the study’s purpose, analyzed participants’ speech using the Cleft Audit Protocol for Speech-Augmented (CAPS-A). On day 1, recordings included Sentence Set 1. On day 2, 23 days later, recordings included Sentence Set 2. Main results: The difference between Sentence Set 1 and Sentence Set 2 ‘total scores’ (sum of scores on all CAPS-A parameters) was significant. The Pearson Product Moment showed high correlation. A Wilcoxon test revealed a significant difference between Sets 1 and 2 on the hypernasality parameter, and this alone accounted for the significant difference in total scores. Conclusion: The inclusion or exclusion of nasal consonants in the sentence set significantly affected perceptual ratings of hypernasality but none of the other CAPS-A parameters, highlighting the need for further investigation into perceptual nasality ratings.

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Understanding PI-QUAL for prostate MRI quality: a practical primer for radiologists

Insights into Imaging ◽

10.1186/s13244-021-00996-6 ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Francesco Giganti ◽

Alex Kirkham ◽

Veeru Kasivisvanathan ◽

Marianthi-Vasiliki Papoutsaki ◽

Shonit Punwani ◽

...

Keyword(s):

Diffusion Weighted Imaging ◽

Signal To Noise Ratio ◽

High Signal ◽

Diagnostic Quality ◽

Prostate Mri ◽

Prostate Imaging ◽

Dynamic Contrast Enhanced ◽

Diffusion Weighted ◽

Contrast Enhanced

AbstractProstate magnetic resonance imaging (MRI) of high diagnostic quality is a key determinant for either detection or exclusion of prostate cancer. Adequate high spatial resolution on T2-weighted imaging, good diffusion-weighted imaging and dynamic contrast-enhanced sequences of high signal-to-noise ratio are the prerequisite for a high-quality MRI study of the prostate. The Prostate Imaging Quality (PI-QUAL) score was created to assess the diagnostic quality of a scan against a set of objective criteria as per Prostate Imaging-Reporting and Data System recommendations, together with criteria obtained from the image. The PI-QUAL score is a 1-to-5 scale where a score of 1 indicates that all MR sequences (T2-weighted imaging, diffusion-weighted imaging and dynamic contrast-enhanced sequences) are below the minimum standard of diagnostic quality, a score of 3 means that the scan is of sufficient diagnostic quality, and a score of 5 implies that all three sequences are of optimal diagnostic quality. The purpose of this educational review is to provide a practical guide to assess the quality of prostate MRI using PI-QUAL and to familiarise the radiologist and all those involved in prostate MRI with this scoring system. A variety of images are also presented to demonstrate the difference between suboptimal and good prostate MR scans.

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Role of Diffusion Weighted Imaging in Differentiating Benign from Pathological Vertebral Compression

QJM ◽

10.1093/qjmed/hcab106.010 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Faten Mohammed Mahmoud Kamel ◽

Hazem Ibrahim Abdel Rahman ◽

Amany Sayed Khaleel Ahmed Elkhayat

Keyword(s):

Vertebral Fractures ◽

Diffusion Weighted Imaging ◽

Laboratory Evaluation ◽

Vertebral Collapse ◽

Adc Value ◽

Conventional Mri ◽

Diffusion Weighted ◽

Significant Difference

Abstract Background Vertebral collapse is a common problem due to benign conditions (trauma, infection, osteoporosis) or malignant process. And although the spine is the most common site of bone metastases (39% of bony metastases in patients with primary neoplasms) benign vertebral fractures due to osteopenia occur in one third of cancer patients, making it essential to determine whether the cause of vertebral collapse is benign or malignant. Aim of the Work To establish the role of DWI in differentiating benign from pathologic vertebral fractures using ADC values in comparison with histopathology report /laboratory evaluation and clinical follow-up. Patients and Methods A cross sectional study is approved by the ethics review board of Ain Shams University Hospital (Al Demerdash). All patients provided informed consent for the MR imaging examinations and for inclusion of their data in this analysis. From April 2020 to october 2020, 25 cases with previous imaging with vertebral compression underwent conventional MRI study on the affected region. Diffusion weighted imaging and ADC was added. Results We performed DWI using maximum b-values 600, and quantitative analysis, named apparent diffusion coefficient (ADC). We correlated the ADC number to histopathology, laboratory finding and clinical follow up. In our study there was significant difference (p < 0.04) between DWI of the benign and malignant groups. Also the ADC value showed significant difference <0.001. The mean ADCs of benign VCFs were higher significantly than those of pathological fractures. Conclusion DWI with ADC value was helpful when added to conventional MRI to differentiate benign from pathological (malignant) vertebral compression. It should be a routine sequence in patients with vertebral compression fractures for accurate diagnosis and successful management also can decrease no of biopsies.

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