Detection algorithm of lung cancer candidate nodules on multislice CT images

2002 ◽  
Author(s):  
Tomokazu Oda ◽  
Mitsuru Kubo ◽  
Yoshiki Kawata ◽  
Noboru Niki ◽  
Kenji Eguchi ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Multislice Ct ◽  
Detection Algorithm ◽  
Ct Images

Nodule detection algorithm based on multislice CT images for lung cancer screening

2004 ◽  
Author(s):  
Shinsuke Saita ◽  
Tomokazu Oda ◽  
Mitsuru Kubo ◽  
Yoshiki Kawata ◽  
Noboru Niki ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cancer Screening ◽  
Multislice Ct ◽  
Lung Cancer Screening ◽  
Detection Algorithm ◽  
Ct Images ◽  
Nodule Detection

Dilatation of Hemashield prostheses – a new method for measuring the true prosthetic diameter based on ECG-gated multislice CT images

2013 ◽  
Vol 61 (S 01) ◽  
Author(s):  
M Hamiko ◽  
M Endlich ◽  
C Krämer ◽  
C Probst ◽  
A Welz ◽  
...  
Keyword(s):  
Multislice Ct ◽  
Ct Images ◽  
New Method

Connection of discontinuous segments in early functional recovery from thoracic ossification of the posterior longitudinal ligament treated with posterior instrumented surgery

2020 ◽  
Vol 32 (2) ◽  
pp. 200-206
Author(s):  
Kei Ando ◽  
Kazuyoshi Kobayashi ◽  
Masaaki Machino ◽  
Kyotaro Ota ◽  
Satoshi Tanaka ◽  
...  
Keyword(s):  
Early Stage ◽  
Morphological Changes ◽  
Japanese Orthopaedic Association ◽  
Multislice Ct ◽  
Posterior Longitudinal Ligament ◽  
Ct Images ◽  
Rigid Fixation ◽  
Disc Space ◽  
Fusion Surgery ◽  
Estimated Blood Loss

OBJECTIVEThe objective of this study was to investigate the relationship between morphological changes in thoracic ossification of the posterior longitudinal ligament (T-OPLL) and postoperative neurological recovery after thoracic posterior fusion surgery. Changes of OPLL morphology and postoperative recovery in cases with T-OPLL have not been examined.METHODSIn this prospective study, the authors evaluated data from 44 patients (23 male and 21 female) who underwent posterior decompression and fusion surgery with instrumentation for the treatment of T-OPLL at our hospital. The patients’ mean age at surgery was 50.7 years (range 38–68 years). The minimum duration of follow-up was 2 years. The location of thoracic ossification of the ligamentum flavum (T-OLF), T-OLF at the OPLL level, OPLL morphology, fusion range, estimated blood loss, operative time, pre- and postoperative Japanese Orthopaedic Association (JOA) scores, and JOA recovery rate were investigated. Reconstructed sagittal multislice CT images were obtained before and at 3 and 6 months and 1 and 2 years after surgery. The basic fusion area was 3 vertebrae above and below the OPLL lesion. All parameters were compared between patients with and without continuity across the disc space at the OPLL at 3 and 6 months after surgery.RESULTSThe preoperative morphology of OPLL was discontinuous across the disc space between the rostral and caudal ossification regions on sagittal CT images in all but one of the patients. Postoperatively, these segments became continuous in 42 patients (97.7%; occurring by 6.6 months on average) without progression of OPLL thickness. Patients with continuity at 3 months had significantly lower rates of diabetes mellitus (p < 0.05) and motor palsy in the lower extremities (p < 0.01). The group with continuity also had significantly higher mean postoperative JOA scores at 3 (p < 0.01) and 6 (p < 0.05) months and mean JOA recovery rates at 3 and 6 months (both p < 0.01) after surgery.CONCLUSIONSPreoperatively, discontinuity of rostral and caudal ossified lesions was found on CT in all patients but one of this group of 44 patients who needed surgery for T-OPLL. Rigid fixation with instrumentation may have allowed these segments to connect at the OPLL. Such OPLL continuity at an early stage after surgery may accelerate spinal cord recovery.

Prevalence of sarcopenia in patients with gastroesophageal and lung malignancies undergoing surgical resection and its impact on immediate postoperative outcomes: A prospective observational study.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e18617-e18617
Author(s):  
Sudhakar Gunasekar ◽  
SVS Deo ◽  
Sunil Kumar ◽  
Ekta Dhamija ◽  
Sandeep Kumar Bhoriwal
Keyword(s):  
Lung Cancer ◽  
Weight Loss ◽  
Grip Strength ◽  
Handgrip Strength ◽  
Ct Images ◽  
Control Group ◽  
Gastroesophageal Cancer ◽  
Combined Method ◽  
Skeletal Muscle Index ◽  
Strength Based

e18617 Background: The study evaluated the prevalence & impact of sarcopenia in gastroesophageal cancer (GC) & lung cancer (LC) patients undergoing resection. Methods: An observational prospective study was conducted in department of surgical oncology, AIIMS, New Delhi. All patients aged under 65 years with resectable GC & LC were included. Skeletal muscle index (SMI) using cross-sectional CT images at the level of L3 & Hand grip strength (dynamometer) were used to assess sarcopenia. Random benign patients with CT images were used as control group. Patients were categorized into sarcopenic and non-sarcopenic and outcome parameters were compared. Results: In the study population (n = 66), GC & LC constituted 44 (66.67%) & 22(33.33%) respectively. Mean age was 53.4 years. The prevalence of sarcopenia based on the combined method (CT imaging & handgrip strength) was 57.58%, CT based sarcopenia was 33.34% & handgrip strength-based sarcopenia was 43.93%. Mild and moderate sarcopenia was seen in 37.88% (n = 25) & 19.7 % (n = 13) respectively. Among patients with GC, prevalence of sarcopenia was 59.09% by combined method, 36.36% and 43.18% by CT based method alone & handgrip strength-based method alone respectively. Among LC prevalence of sarcopenia was 54.54% by combined method, 27.27% and 45.45% by CT based & handgrip-based method. The concordance between CT muscle mass & grip strength was 62.12%. Most female patients had weak handgrip strength despite having normal SMI. In control group (n = 44) mean age was 54.5 years, the prevalence of CT based sarcopenia was 34.09%. Weight loss history & BMI correlated with the degree of sarcopenia. Out of 66 patients 13% (n = 9) patients were unresectable. Moderate sarcopenia group had more statistically significant (P -0.02) unresectable disease compared to mild and non-sarcopenic groups. In postoperative period, sarcopenic group (64.51% vs 38.36 %) had more grade 2 complications though statistically insignificant. There was no difference in hospital stay between the two groups. In patients with GC , postoperative respiratory complication occurred in 11.53% (n = 3) of sarcopenic patients and 5.5%(n = 1) of non-sarcopenic patients, anastomotic leak occurred in 7.69% (n = 2) of sarcopenic patients and 5.5% (n = 1) of nonsarcopenic patients. Conclusions: The prevalence of sarcopenia is higher in patients with gastroesophageal cancer compared to lung cancer. The important factors that affect the sarcopenia include age and body mass index and weight loss history. The study has showed a trend towards increased post-operative complications and increased unresectable cases in patients with mild to moderate sarcopenia. Further larger studies are required to validate if sarcopenia can be used as an adjunct to predict resectability and post-operative outcomes.

Automatic nodule detection for lung cancer in CT images: A review

2018 ◽  
Vol 103 ◽  
pp. 287-300 ◽  
Author(s):  
Guobin Zhang ◽  
Shan Jiang ◽  
Zhiyong Yang ◽  
Li Gong ◽  
Xiaodong Ma ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Ct Images ◽  
Nodule Detection

Development of Methodology for Transforming CT Images Indicating Location and Size of Lung Cancer Nodule

2017 ◽  
pp. 293-301
Author(s):  
Rajani R. Mhetre ◽  
Pooja P. Kawathekar ◽  
Sneha S. Kadam ◽  
Megha B. Gore
Keyword(s):  
Lung Cancer ◽  
Ct Images
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