scholarly journals DC2Anet: Generating Lumbar Spine MR Images from CT Scan Data Based on Semi-Supervised Learning

2019 ◽  
Vol 9 (12) ◽  
pp. 2521 ◽  
Author(s):  
Cheng-Bin Jin ◽  
Hakil Kim ◽  
Mingjie Liu ◽  
In Ho Han ◽  
Jae Il Lee ◽  
...  

Magnetic resonance imaging (MRI) plays a significant role in the diagnosis of lumbar disc disease. However, the use of MRI is limited because of its high cost and significant operating and processing time. More importantly, MRI is contraindicated for some patients with claustrophobia or cardiac pacemakers due to the possibility of injury. In contrast, computed tomography (CT) scans are much less expensive, are faster, and do not face the same limitations. In this paper, we propose a method for estimating lumbar spine MR images based on CT images using a novel objective function and a dual cycle-consistent adversarial network (DC 2 Anet) with semi-supervised learning. The objective function includes six independent loss terms to balance quantitative and qualitative losses, enabling the generation of a realistic and accurate synthetic MR image. DC 2 Anet is also capable of semi-supervised learning, and the network is general enough for supervised or unsupervised setups. Experimental results prove that the method is accurate, being able to construct MR images that closely approximate reference MR images, while also outperforming four other state-of-the-art methods.

2020 ◽  
Vol 14 (4) ◽  
pp. 155798832094935
Author(s):  
Eric Chun Pu Chu

Degenerative disease of the lumbar spine is often ignored as a potential cause of testicular pain because the exact link between the two remains uncertain. This article reports the case of a 60-year-old man with a 3-year history of low back pain and unexplained right testicular pain for 2 years. Painful symptoms were negatively affecting his social, physical, and sexual functions. After failure to achieve pain relief through multiple types of therapy, the patient sought chiropractic treatment for his condition. Lumbar spine magnetic resonance imaging (MRI) revealed disc protrusion at the L1/L2, L3/L4, and L4/L5 segments causing thecal sac indentations. Due to the absence of direct testicular causes, the medical impression was chronic testicular pain (CTP) complicating lumbar disc disease. The patient experienced regular improvement in his low back and testicular pain with complete resolution of both after 8 weeks of chiropractic treatment. This article describes an overlook of the etiology of this patient’s testicular pain and a successful option in treating the patient. CTP has multifactorial etiology. An excellent treatment outcome depends heavily on recognizing the origin of the pain.


2019 ◽  
Vol 10 (4) ◽  
pp. 31-35
Author(s):  
Sohail Amir ◽  
Bilal Khan ◽  
Aurangzeb ◽  
Khaleeq-Uz-Zaman

ABSTRACT:OBJECTIVE: The objective of this study is to determine the incidence of dural tear in lumbar spine surgeries and associated risk factors. MATERIAL AND METHODS: In this descriptive cross sectional study, 117 Patients were studied in the department of Neurosurgery, Naseer Teaching Hospital Peshawar from February 2013 to December 2016. All patients with either gender or age who needed spinal surgery for lumbar disc disease, spinal stenosis, and re-do surgery were included in study while those with trauma, tumor and infection were excluded. Data was collected regarding the age of patients, co-morbid conditions, lumbar spine disease, level of involvement, type of operation, occurrence of dural tear, site of dural tear and complications were recorded on a predesigned proforma. Data was analyzed using SPSS version 20.0. RESULTS: Out of 117 patients 63(53.8%) were male and 54(46.1%) were female. Male to female ratio was 1.2:1. In our study the age of patient ranged from 16 to 80 years with mean age 38 + 2.34 years Dural tear occurred in 15(12.8%) of patients, among these 5 (4.2%) dural tear in lumbar disc prolapsed , 8(6.8%) in spinal stenosis and 2 (1.7%) in surgery for recurrent disc disease. The complication rate was 19(16.2%), among these the most common complication was cerebrospinal fluid leak (CSF) in 7(5.9%), delayed wound healing in 5(4.2%), discitis in 4(3.4%) and others in 3(2.5%) of patients. CONCLUSION: Dural tear (DT) is not uncommon complication during spinal surgery and represent a serious challenge for both surgeon and patients. Female, obese, older age, re-do surgery are the major risk factor for dural tear.


2020 ◽  
Author(s):  
YAGMUR ISIN ◽  
EROL KAYA ◽  
ONUR HAPA ◽  
CEREN KIZMAZOGLU ◽  
ONUR GURSAN

Abstract Background Presence of lumbar spine disorder with hip diseases is defined as Hip-Spine syndrome, there might be a relation between hip torsional deformities and lumbar disc disease which has not clarified previously. Purpose of the present study was to find whether hip torsional parameters (femur, acetabular anteversion) and clinical findings (hip range of motion, hip score) differ at patients with lumbar disc disease. Methods Patients with lomber disc herniation (n: 20) and control subjects (n: 20) without any lumbar spine or hip disease were enrolled. Femoral anteversion (FeAv), acetabular anteversion (AA), center of edge angle (CE), degree of hip flexion, extension, Harris Hip scores (HHS) were evaluated bilaterally. Results HHS score, degree of extension plus flexion was lower at diseased side when it is compared to the control subjects (p < 0.001). Unilaterally affected patients had lower AA than control subjects (AA: 13 ± 40 vs16 ± 20 p:0.01). Mechanic and /or hip torsional parameters especially the acetabular retroversion may have an etiopathogenetic role at unilateral lumbar disc disease.


Author(s):  
Yağmur Işın ◽  
Erol Kaya ◽  
Onur Hapa ◽  
Ceren Kızmazoğlu ◽  
Onur Gürsan ◽  
...  

Objective: Coexistence of lumbar spine disorder with hip diseases is defined as Hip-Spine syndrome, there might be a relation between torsional deformities of the hip and lumbar disc disease. Purpose of the present study was to find whether hip torsional parameters (femur, acetabular anteversion) and clinical findings (hip range of motion, hip score) differ in patients with lumbar disc disease. Method: Patients with lomber disc herniation (n: 20) and control subjects (n: 20) without any lumbar spine or hip disease were enrolled in the study. Femoral anteversion (FeAv), acetabular anteversion (AA), center of edge angle (CE), degree of hip flexion, extension, Harris Hip scores (HHS) were evaluated bilaterally. Results: HHS score, degree of extension plus flexion was lower at diseased side when it is compared to the control subjects (p < 0.001). Unilaterally affected patients had lower AA than control subjects (AA: 13 ± 40 vs16 ± 20 p: 0.01). Conclusion: As there is a link between hip and spine disorders, present study aims to find whether there is a causal relation between hip torsional deviations and lumbar disc disease. Partially supporting the hypothesis, diseased side had lower degrees of acetabular anteversion compared to control subjects at unilaterally affected patients. Mechanical and /or hip torsional parameters especially the acetabular retroversion may have an etiopathogenetic role in unilateral lumbar disc disease.


2021 ◽  
pp. 219256822199836
Author(s):  
Sathish Muthu ◽  
Madhan Jeyaraman ◽  
Girinivasan Chellamuthu ◽  
Naveen Jeyaraman ◽  
Rashmi Jain ◽  
...  

Study Design: Systematic review and meta-analysis. Objectives: We performed this meta-analysis to evaluate whether intradiscal Platelet Rich Plasma(PRP) injection has any beneficial role in the management of lumbar disc disease. Methods: We conducted independent and duplicate electronic database searches including PubMed, Embase, and Cochrane Library till September 2020 for studies investigating the role of intradiscal PRP in the management of lumbar disc disease. The analysis was performed in the R platform using OpenMeta[Analyst] software. Results: 13 studies including 2 RCTs, 5 prospective, and 6 retrospective studies involving 319 patients were included in the meta-analysis. A single-arm meta-analysis of the included studies showed a beneficial effect of the intervention in terms of pain relief outcomes like VAS score (p < 0.001), pain component of SF-36 (p = 0.003) while such improvement was not seen in functional outcome measures like ODI score (p = 0.071), the physical component of SF-36 (p = 0.130) with significant heterogeneity noted among the included studies. No structural improvement in magnetic resonance imaging was observed (p = 0.106). No additional procedure-related adverse events were noted in the included studies (p = 0.662). Conclusion: There is a paucity of high-quality studies to give conclusive evidence on the benefits of intradiscal PRP for lumbar disc disease. Although intradiscal PRP injection has shown some beneficial effect in controlling pain for lumbar disc disease, we could not find structural or functional improvement from the included studies. Hence, we recommend large double-blind double-arm randomized controlled studies to analyze the benefits of the intervention being analyzed.


2008 ◽  
Vol 9 (1) ◽  
Author(s):  
You-Qiang Song ◽  
Daniel WH Ho ◽  
Jaro Karppinen ◽  
Patrick YP Kao ◽  
Bao-Jian Fan ◽  
...  

Spine ◽  
1984 ◽  
Vol 9 (4) ◽  
pp. 414-417 ◽  
Author(s):  
KEN WINSTON ◽  
CALVIN RUMBAUGH ◽  
VINCENT COLUCCI

2021 ◽  
Vol 7 (1) ◽  
pp. 533-535
Author(s):  
Dr. Vishnu Vikraman Nair ◽  
Dr. Sarabjeet Singh Kohli ◽  
Dr. Nilesh Vikshwakarma ◽  
Dr. Shaival Chauhan

Sign in / Sign up

Export Citation Format

Share Document