New frontiers ahead focal therapy postoperative follow-up: What is the real role of MRI in this setting?

2017 ◽  
Vol 35 (6_suppl) ◽  
pp. e539-e539
Author(s):  
Igor Nunes-Silva ◽  
Eric Barret ◽  
Mohammed Baghdadi ◽  
Victor Srougi ◽  
Silvia Garcia Barreras ◽  
...  
Keyword(s):  
Likelihood Ratio ◽  
Group Analysis ◽  
Focal Therapy ◽  
Primary Treatment ◽  
Matched Pair ◽  
Mri Findings ◽  
Predictive Values ◽  
Magnetic Resonance Imaging Mri ◽  
Sensitivity Specificity

e539 Background: Magnetic resonance imaging (MRI) plays an important role as a treatment-monitoring tool along focal therapy (FT) follow-up. This is the first study to assess MRI ability to correctly predict prostate cancer (PCa) local T-stage in the FT postoperative scenario. We aimed to describe MRI effectiveness in predicting upstaging in two groups of men: 1) men who failure after primary FT and then underwent salvage robotic-assisted radical prostatectomy (S-RARP) and 2) men who underwent RARP as primary treatment (P-RARP). Methods: Prospective data of 2775 men underwent RARP for localized PCa from 2000 to 2016 were reviewed. Twenty-two men underwent S-RARP after FT failure (S-RARP group). Total 2750 underwent RARP as first treatment. Matched-pair 1:2 selection of 44 out of 2750 patients by age defined primary RARP group (P-RARP). All patients underwent MRI immediately before RARP. MRI findings were confronted with final surgical pathology. Primary endpoint: sensitivity, specificity, positive and negative predictive values; positive (+LR) and negative (-LR) likelihood ratio regarding upstaging analysis on S-RARP. Secondary endpoint: same effectiveness analysis on P-RARP. Results: Preoperative MRI failed in predicting upstaging in 80% versus 91.7% of patients (p = 0.515) that presented final pathological status ≥ pT3a on S-RARP and P-RARP groups, respectively. On the other hand, when final pathology described a localized disease T2a-T2c, MRI correctly predicted the final pathological status in 81.8% versus 95.2% of patients (p = 0.27) on S-RARP and P-RARP groups, respectively. Between-group analysis, showed sensitivity and specificity rates of 20% versus 8.33% and 81.8% versus 95.23%, respectively; Positive and negative predictive values of 33.33% versus 50% and 69.23% versus 64.51%, respectively; Positive (+LR) and negative (-LR) likelihood ratio of 1.1 versus 1.74 and 0.98 versus 0.96, respectively. Conclusions: MRI has shown to be a weak diagnostic tool for predicting extra-prostatic disease along FT follow-up. Urologists may be warned about the risk of underdiagnosis and undertreatment in patients presenting failure after FT.

scholarly journals CURRENT COMPUTER TECHNOLOGIES IN THE DIAGNOSIS OF TRACHEOMALACIA IN PATIENTS WITH CICATRICIAL TRACHEAL STENOSIS IN THE PERIOPERATIVE PERIOD

2018 ◽  
Vol 99 (4) ◽  
pp. 197-203
Author(s):  
I. M. Koroleva ◽  
M. A. Mishchenko
Keyword(s):  
Tracheal Stenosis ◽  
Perioperative Period ◽  
Control Group ◽  
Mri Findings ◽  
Endoscopic Method ◽  
Clinically Significant ◽  
Magnetic Resonance Imaging Mri ◽  
Sensitivity Specificity ◽  
Diagnostic Capabilities

Objective: to analyze current radiodiagnostic techniques in identifying tracheomalacia (TM) and estimating its severity and extent in patients with cicatricial tracheal stenosis (CTS) and to determine the important characteristics of TM according to follow-up multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) findings.Material and methods. The investigation included the results of examining 94 patients, 81 of whom were diagnosed with CTS. To analyze the efficiency of the studies, the patients were divided into three groups; a control group of patients was formed. The diagnosis of TM was verified by clinical examination, instrumental diagnosis, MSCT and MRI studies, and intraoperative revision. The patients’ postoperative features were taken into consideration. Diagnostic performance measures, such as sensitivity, specificity, and accuracy, were calculated. Static radiation techniques (MSCT and MRI) and follow-up procedures (fMSCT and fMRI) were compared.Results. The follow-up procedures were proven to be twice as informative for the detection of the symptoms of TM as the endoscopic method that is considered the main method for the diagnosis of pathological tracheal changes. The diagnostic capabilities of MSCT, fMSCT, MRI, and fMRI were determined; criteria for identifying TM were formulated. The use of the follow-up procedures to identify clinically significant TM in patients with CTS could radically alter surgical tactic in 36.9% of cases.Conclusion. The proposed algorithm for examination of patients with CTS, which includes follow-up radiation procedures to evaluate the functional state of the tracheal wall, makes it possible to determine an optimal treatment policy and to significantly reduce the risks of complications and disease recurrences.

C onversion to multiple sclerosis after a clinically isolated syndrome of the brainstem: cranial magnetic resonance imaging, cerebrospinal fl uid and neurophysiological findings

2003 ◽  
Vol 9 (1) ◽  
pp. 39-43 ◽  
Author(s):  
J Sastre-Garriga ◽  
M Tintoré ◽  
A Rovira ◽  
E Grivé ◽  
I Pericot ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Multiple Sclerosis ◽  
Magnetic Resonance ◽  
Clinically Isolated Syndrome ◽  
Oligoclonal Bands ◽  
Resonance Imaging ◽  
Predictive Values ◽  
Magnetic Resonance Imaging Mri ◽  
Sensitivity Specificity

B ackground and aim: C onversion to multiple sclerosis (MS) after optic neuritis and myelitis has been thoroughly studied; however, limited data are available regarding conversion to MS after a clinically isolated syndrome of the brainstem (CISB). The aim of this study was to investigate conversion to MS in patients with C ISB. Methods: Fifty-one patients with C ISB were prospectively studied. C ranial magnetic resonance imaging (MRI), determination of oligoclonal bands (OBs) in the cerebrospinal fluid (C SF) and evoked potentials (EPs) were performed. Based on conversion to MS at follow-up, the sensitivity, specificity, accuracy and positive and negative predictive values of these tests were calculated. Results: C linically definite MS developed in 18 (35%) patients after a mean follow-up of 37 months. Paty’s MRI criteria showed a sensitivity of 89%, a specificity of 52% and an accuracy of 65%; Fazekas’ criteria showed a sensitivity of 89%, a specificity of 48% and an accuracy of 63%; Barkhof’s criteria showed a sensitivity of 78%, a specificity of 61% and an accuracy of 67%. The presence of O Bs in the C SF showed a sensitivity of 100%, a specificity of 42% and an accuracy of 63%. No differences for neurophysiological parameters were found between patients who did and those who did not convert to MS. C onclusion: Fulfilling Paty’s, Fazekas’ or Barkhof’s MRI criteria and the presence of O Bs in the C SF are associated with a higher risk of conversion to MS in patients with C ISB. Determinatio n of O Bs in the C SF has the greatest sensitivity of all tests. Barkhof’s MRI criteria have greater specificity (although less than previously published for mixed cohorts of clinically isolated syndromes) in predicting conversion to MS for C ISB than either Paty’s or Fazekas’ criteria.

A New Era of Organ-Preserving Treatment in Pediatric Intraocular Retinoblastoma in Russia: A Multicenter Cohort Study

2018 ◽  
Vol 5 (1) ◽  
pp. 51-69 ◽  
Author(s):  
Тatiana L. Ushakova ◽  
Igor A. Тrofimov ◽  
Оlga V. Gorovtsova ◽  
Аndrey A. Yarovoy ◽  
Svetlana V. Saakyan ◽  
...  
Keyword(s):  
Gamma Knife ◽  
Systemic Chemotherapy ◽  
Focal Therapy ◽  
Primary Treatment ◽  
Local Chemotherapy ◽  
Multicenter Cohort Study ◽  
Cancer Disease ◽  
Tumor Spread ◽  
Group D

Background.Retinoblastoma (RB) is a life threatening cancer disease. A breakthrough in the treatment of children with RB is associated with the improvement of conservative treatment that was administered in at least one of the two tumor-affected eyes in most bilateral cases, that was chemotherapy both systemic and local (selective intra-arterial and intravitreal) in most cases combined with laser therapy, cryotherapy, or brachytherapy. The development of such techniques as local chemotherapy is focused on preservation of visual functions, reducing the number of enucleations and radiotherapy (RT) course. The success of the healing of RB is closely associated with a multidisciplinary approach to diagnosis and treatment, as well as specialized longterm follow-up clinical examination.Objective.eye and vision preservation against large intraocular tumors with different growth types and localization without the course of remote radiation therapy was the main purpose.Methods.In the period from September 2012 to January 2016, the study enrolled 45 patients with RB when at least one eye had intraocular tumor spread corresponding to the group C or D. According to the ABC international classification, patients have a relatively good prognosis for organ-preserving treatment. 4 of 18 children with bilateral RB had undergone primary enucleation of worse eye the worst eye, group E; 49 (77.8%) of the 63 affected eyes had features for groups C and D. In this study, no patient received local chemotherapy initially, only after prior systemic chemotherapy. Selective intra-arterial chemotherapy (SIAC) was applied to 41 patients (45 eyes; mean course number was 2), and 32 patients (34 eyes) had undergone intravitreal chemo therapy (IViC) (mean course number was 2). Focal therapy and local chemotherapy were the main methods of treatment for progression (new lesions on the retina) in 8 (16.3%) of 49 eyes with tumors of group C (n=1) and D (n=7); the relapse in 14 of 49 (new lesions on the retina) in eyes with tumors of group C (n=5) and D (n=6) and (new lesions on the retina and the vitreous) in eyes with tumors of group D (n=3) (28.5%), and stabilization of disease n=23 (46.9%). We should note that 2 patients underwent repeated course of in case of systemic chemotherapy, 1 patient — a Gamma Knife procedure due to registered disease stabilization, progression or relapse.Results.10 (20.4%) of 49 eyes saved due to the combined chemotherapy. In 45 patients diseasefree survival rate was 56.1±8.9 % (with mean follow-up period 26.9±2.5 months). 1 of 45 patients died from leukemia. 44 of 45 patients are alive without metastasis. The mean follow-up was 20 months (3 to 43 months). Eye salvage rate in group C — 14 (93.3%) of 15, in group D — 31 (91.2%) of 34.Conclusion.These methods: second line of systemic chemotherapy, RT, and a Gamma Knife procedure should be considered as a failure of primary treatment. Our study demonstrated a high efficacy of local chemotherapy with promissing techniques of conservation therapy, which safety increases due to experience.

Accuracy of Rotator Cuff Tears and Tendinosis Diagnoses on Shoulder Ultrasound Performed by a Short-experienced Operator

2018 ◽  
Vol 1 ◽  
pp. 9
Author(s):  
Harshad Arvind Vanjare ◽  
Jyoti Panwar
Keyword(s):  
Rotator Cuff ◽  
Negative Predictive Value ◽  
Rotator Cuff Tear ◽  
Predictive Value ◽  
Rotator Cuff Tears ◽  
Mri Findings ◽  
Cuff Tear ◽  
Experienced Operator ◽  
Magnetic Resonance Imaging Mri ◽  
Sensitivity Specificity

Objective The objective of the study was to assess the accuracy of ultrasound examination for the diagnosis of rotator cuff tear and tendinosis performed by a short experienced operator, compared to magnetic resonance imaging (MRI) results. Method A total of 70 subjects suspected to have rotator cuff tear or tendinosis and planned for shoulder MRI were included in the study. Shoulder ultrasound was performed either before or after the MRI scan on the same day. Ultrasound operator had a short experience in performing an ultrasound of the shoulder. Ultrasound findings were correlated to MRI findings. Results Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for the diagnosis of tendinosis were 58%, 84%, 63%, 80%, and 75%, respectively, and it was 68%, 91%, 73%, 88%, and 85%, respectively, for the diagnosis of rotator cuff tear. Conclusions Sensitivity for diagnosing rotator cuff tear or tendinosis was moderate but had a higher negative predictive value. Thus, the ultrasound operator with a short experience in performing shoulder ultrasound had moderate sensitivity in diagnosing tendinosis or tears; however, could exclude them with confidence.

scholarly journals A New Evaluation Method for Lumbar Spinal Instability: Passive Lumbar Extension Test

2006 ◽  
Vol 86 (12) ◽  
pp. 1661-1667 ◽  
Author(s):  
Yuichi Kasai ◽  
Koichiro Morishita ◽  
Eiji Kawakita ◽  
Tetsushi Kondo ◽  
Atsumasa Uchida
Keyword(s):  
Likelihood Ratio ◽  
Sensitivity And Specificity ◽  
Evaluation Method ◽  
Positive Likelihood Ratio ◽  
Spinal Instability ◽  
Predictive Values ◽  
Flexion Extension ◽  
Lumbar Extension ◽  
Lumbar Spinal ◽  
Sensitivity Specificity

Abstract Background and PurposeAlthough many studies have described clinical examination measures for the diagnosis of lumbar spinal instability, few of them have investigated the sensitivity and specificity of the measures that were used. The authors devised a passive lumbar extension (PLE) test for assessing lumbar spinal instability. The purpose of this study was to investigate the sensitivity, specificity, and positive likelihood ratio of this test. Subjects and Methods. The PLE test as well as the instability catch sign, painful catch sign, and apprehension sign tests were done for 122 subjects with lumbar degenerative diseases. The subjects were divided into 2 groups—instability positive and instability negative—on the basis of findings on flexion-extension films of the lumbar spine. The sensitivity, specificity, predictive values, and positive likelihood ratio of each test were investigated. Results. The sensitivity and specificity of the PLE test were 84.2% and 90.4%, respectively. These values were higher than those of other signs. The positive likelihood ratio of the PLE test was 8.84 (95% confidence interval=4.51–17.33). Discussion and Conclusion. The PLE test is an effective method for examining patients for lumbar spinal instability and can be performed easily in an outpatient clinic.

Role of contrast-enhanced spectral mammography in the post biopsy management of B3 lesions: Preliminary results

2018 ◽  
Vol 105 (5) ◽  
pp. 378-387 ◽  
Author(s):  
Giulia Bicchierai ◽  
Jacopo Nori ◽  
Diego De Benedetto ◽  
Cecilia Boeri ◽  
Ermanno Vanzi ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Surgical Excision ◽  
Surgical Biopsy ◽  
Predictive Values ◽  
Contrast Enhanced ◽  
B3 Lesions ◽  
Malignant Lesions ◽  
Sensitivity Specificity

PurposeTo evaluate the role of contrast-enhanced spectral mammography (CESM) in the post biopsy management of breast lesions classified as lesions of uncertain malignant potential (B3) by core needle biopsy and vacuum-assisted biopsy (VAB).MethodsThe local ethics committee approved this retrospective study and for this type of study formal consent is not required. A total of 42 B3 lesions in 40 women aged 41–77 years were included in our study. All patients underwent CESM 2–3 weeks after the biopsy procedure and surgical excision was subsequently performed within 60 days of the CESM procedure. Three radiologists reviewed the images independently. The results were then compared with histologic findings.ResultsThe sensitivity, specificity, and positive and negative predictive values for confirmed demonstration of malignancy at CESM were 33.3%, 87.2%, 16.7%, and 94.4% for reader 1; 66.7%, 76.9%, 18.2%, and 96.7% for reader 2; 66.7%, 74.4%, 16.7%, and 96.7% for reader 3. Overall agreement on detection of malignant lesions using CESM among readers ranged from moderate to substantial (κ = .451–.696), for categorization of BPE from moderate to substantial (κ = .562–.711), and for evaluation of lesion intensity enhancement from fair to moderate (κ = .346–.459).ConclusionIn cases of Breast Imaging Reporting and Data System (BI-RADS) 1, BI-RADS 2, or BI-RADS 3 results at CESM, follow-up or VAB rather than surgical biopsy might be performed.

scholarly journals THU0487 DIAGNOSTIC DILEMMA: WHICH CLINICAL TEST IS MOST ACCURATE FOR DIAGNOSING SUPRASPINATUS MUSCLE TEARS AND TENDINOSIS?

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 481.3-481
Author(s):  
E. Balevi Batur ◽  
Z. Bekin Sarikaya ◽  
M. E. Kaygisiz ◽  
İ. Albayrak Gezer ◽  
F. Levendoğlu
Keyword(s):  
Shoulder Pain ◽  
Lower Sensitivity ◽  
Clinical Test ◽  
Clinical Tests ◽  
Mri Findings ◽  
Diagnostic Dilemma ◽  
Test Drop ◽  
Magnetic Resonance Imaging Mri ◽  
Sensitivity Specificity ◽  
Higher Sensitivity

Background:Supraspinatus tears and tendinosis are the most common pathology that cause shoulder pain to approximately half of the patients presenting clinically.1Objectives:To investigate the diagnostic accuracy of five clinical tests in the diagnosis of supraspinatus tears and tendinosis compared with magnetic resonance imaging (MRI).Methods:A total of 116 painful shoulders of 106 consecutive patients were examined. Patients were assessed using the most commonly used special clinical tests including the Jobe test (empty can), Neer test, drop arm test, Hawkins test and full can tests to identify supraspinatus tears and tendinosis. A visual analogue scale (VAS) was used for pain detection, and the Shoulder Pain and Disability Index (SPADI) questionnaire was administered. MRI examinations were performed on 1.5 Tesla MR system and images were assessed by a blinded radiologist. The primary outcomes were to determine the sensitivity, specificity, and accuracy of the five clinical tests, and to establish their correlation with MRI for supraspinatus tears and tendinosis.Results:The mean age was 55.10 ± 10.20 years, and 32.08% of the patients were female. The Hawkins test had a higher sensitivity and accuracy in tears (sensitivity 89.66%, accuracy 56.03%, respectively) and higher sensitivity in tendinosis (79.07%). The drop arm test had a lower sensitivity but higher specificity in both tendinosis and tears (sensitivity 0%, 12.07%, respectively, and specificity 87.67%, 96.5%, respectivelyConclusion:The Hawkins test was the most sensitive in both supraspinatus tendinosis and tears compared with MRI findings.References:[1]Yamaguchi K, Ditsios K, Middleton WD, Hildebolt CF, Galatz LM, Teefey SA,The demographic and morphological features of rotator cuff disease. A comparison of asymptomatic and symptomatic shoulders. J Bone Joint Surg Am, 2006. 88(8): p. 1699-704.Disclosure of Interests: :None declared

scholarly journals A case of chronic progressive Lyme encephalitis as a manifestation of late Lyme neuroborreliosis

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Vivek Verma ◽  
Matthew Roman ◽  
Disha Shah ◽  
Marina Zaretskaya ◽  
Mohamed H. Yassin
Keyword(s):  
White Matter ◽  
Short Term Memory ◽  
Treatment Options ◽  
Chronic Fatigue ◽  
Short Term ◽  
Mri Findings ◽  
White Matter Changes ◽  
Neurological Improvement ◽  
Magnetic Resonance Imaging Mri

A 54-year-old female living in Europe presented with gait ataxia, dizziness, and bilateral hearing loss. Magnetic resonance imaging (MRI) revealed non-specific white matter changes. The patient’s condition gradually deteriorated over two years without diagnosis. The patient continued to decline cognitively and neurologically with worsening ataxia and upper motor neuron signs. Repeat MRI showed worsening white matter changes. Lumbar puncture, not previously done, showed positive Lyme testing. Treatment with intravenous ceftriaxone resulted in marked neurological improvement. Four years after symptom, the patient has short-term memory deficits and chronic fatigue, but is otherwise neurologically, cognitively, and functionally intact. Follow up MRI findings remain largely unchanged. Because cases of intraparenchymal or encephalopathic neuroborreliosis in America are lacking, so are treatment options. We present a rare case and discuss our experience with antibiotic treatment. This case lends evidence to define optimal treatment of this disease, imperative for hastening neurological recovery.

Interpretations of the dial test should be reconsidered. A diagnostic accuracy study reporting sensitivity, specificity, predictive values and likelihood ratios

2018 ◽  
Vol 3 (4) ◽  
pp. 198-204
Author(s):  
Richard Norris ◽  
Christian Kopkow ◽  
Michael James McNicholas
Keyword(s):  
Diagnostic Accuracy ◽  
Likelihood Ratio ◽  
Predictive Value ◽  
Positive Likelihood Ratio ◽  
Negative Likelihood Ratio ◽  
Knee Ligament ◽  
Predictive Values ◽  
Medial Knee ◽  
Sensitivity Specificity ◽  
Dial Test

ObjectivesTo determine the accuracy of the dial test, used alone and in combination with additional clinical tests, in the diagnosis of an isolated posterolateral corner (PLC) injury, combined PLC-posterior cruciate ligament (PCL) injury or medial knee injury.MethodsA retrospective analysis of consecutive patients who underwent arthroscopic and/or open knee ligament reconstruction surgery was conducted. The dial test was performed in an outpatient’s clinic as part of a routine knee examination. Examination under anaesthetic and intraoperative findings were used as the reference standard test to determine the diagnostic accuracy of the dial test used alone and in combination with other PCL and medial knee tests. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (LR+) and negative likelihood ratio (LR−) were calculated with corresponding 95% CI.ResultsData from 87 patients were available and included in the data analysis. For an isolated PLC injury, the dial test sensitivity and specificity were 0.20 (95% CI 0.08 to 0.39) and 1.00 (95% CI 0.92 to 1.00). The PPV and NPV were 1.00 (95% CI 0.52 to 1.00) and 0.70 (95% CI 0.59 to 0.80). LR+ and LR− of the dial test detecting isolated PLC injury were infinity (95% CI calculation not possible, infinity) and 0.80 (95% CI 0.41 to 1.57). The diagnostic accuracy of the dial test, when used alone and in combination with other PCL and medial knee tests, was also calculated for combined PLC-PCL and medial knee injuries.ConclusionA negative dial test at 30° of knee flexion can rule out a PLC injury, while a test that is positive at 30° and negative at 90° indicates a PLC injury, without concomitant injury to the PCL or medial knee ligaments. A positive test at both 30° and 90° can indicate isolated PLC, combined PLC-PCL or medial ligament injuries, and other knee examination findings are required to differentially diagnose these injury patterns.Level of evidenceII.

The Syndrome of Spontaneous Intracranial Hypotension

Cephalalgia ◽  
1999 ◽  
Vol 19 (2) ◽  
pp. 80-87 ◽  
Author(s):  
CP O'Carroll ◽  
M Brant-Zawadzki
Keyword(s):  
Intracranial Hypotension ◽  
Spontaneous Intracranial Hypotension ◽  
Subdural Effusion ◽  
Resonance Imaging ◽  
Mri Findings ◽  
The Past ◽  
Downward Displacement ◽  
Prior Literature ◽  
Magnetic Resonance Imaging Mri

The authors report four cases of headache and other symptomatology related to the syndrome of intracranial hypotension. They were seen in a routine clinical practice over the past 3 years. The clinical features, magnetic resonance imaging (MRI) findings, and follow-up of these patients are described. Review of the prior literature on the topic is also included. All four patients presented with orthostatic headache syndrome. Three of the four demonstrated diffuse leptomeningeal thickening and enhancement on MRI studies. One subsequently developed a subdural effusion. One patient demonstrated downward displacement of the posterior fossa initially, which resolved on follow-up MRI scanning. Possible pathophysiologies of the syndrome are discussed.

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