LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 39

Search options

  1. Article ; Online: Endoscopic Balloon Dilation of Strictures: Techniques, Short- and Long-Term Outcomes, and Complications.

    Sivasailam, Barathi / Lane, Barton F / Cross, Raymond K

    Gastrointestinal endoscopy clinics of North America

    2022  Volume 32, Issue 4, Page(s) 675–686

    Abstract: EBD is safe and effective for the treatment of strictures. Here we describe the technique of endoscopic balloon dilation (EBD) of strictures including preprocedure considerations, indications, contraindications, and postprocedure complications. The short- ...

    Abstract EBD is safe and effective for the treatment of strictures. Here we describe the technique of endoscopic balloon dilation (EBD) of strictures including preprocedure considerations, indications, contraindications, and postprocedure complications. The short- and long-term outcomes of EBD including factors associated with improved outcomes are also discussed.
    MeSH term(s) Constriction, Pathologic/etiology ; Constriction, Pathologic/surgery ; Crohn Disease/complications ; Dilatation/adverse effects ; Dilatation/methods ; Endoscopy, Gastrointestinal/methods ; Humans ; Intestinal Obstruction/etiology ; Treatment Outcome
    Language English
    Publishing date 2022-09-07
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1313994-0
    ISSN 1558-1950 ; 1052-5157
    ISSN (online) 1558-1950
    ISSN 1052-5157
    DOI 10.1016/j.giec.2022.04.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Radial spatiotemporal evolution of rf magnetic field and plasma current in a very-high-frequency plasma source over a wide range of plasma density and pressure.

    Zhao, Jianping / Ventzek, Peter L G / Lane, Barton / Iwao, Toshihiko / Ishibashi, Kiyotaka

    Physical review. E

    2021  Volume 104, Issue 2-2, Page(s) 25207

    Abstract: We present detailed spatiotemporal measurements of rf magnetic fields and plasma conduction current as well as the corresponding plasma density profiles when very-high-frequency 100-MHz waves are introduced to a parallel plate plasma. The magnetic probe, ...

    Abstract We present detailed spatiotemporal measurements of rf magnetic fields and plasma conduction current as well as the corresponding plasma density profiles when very-high-frequency 100-MHz waves are introduced to a parallel plate plasma. The magnetic probe, optical emission, and plasma absorption probe measurements support a model in which the interaction of high-frequency waves with the moving plasma sheath at specific phases of the very high frequencies (VHF) period leads to local reversals in the vertical rf electric field which can lead to conduction current reversals and circulations. The presence of current reversals and circulation correlate with measured plasma uniformity. In particular, measured electric field and current reversals coincide with the strongly center-peaked plasma density profiles frequently observed in VHF plasma. The magnitude of the center peak increases with the number and magnitude of the current reversal cells. The scale length of the current reversal cells is on the order of what is expected for plasma surface waves. Measurements indicate that plasma conductivity is the common scaling factor for both plasma uniformity and the circulation. The propagation of high-frequency waves and the generation of rf current reversal in one phase of the rf cycle rather than another results in the appearance of harmonics in Fourier decomposed magnetic probe wave forms. These harmonics turn out not to be actual waves or evidence of standing waves at these frequencies but rather consequences of packets of wave propagation that occur periodically.
    Language English
    Publishing date 2021-09-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2844562-4
    ISSN 2470-0053 ; 2470-0045
    ISSN (online) 2470-0053
    ISSN 2470-0045
    DOI 10.1103/PhysRevE.104.025207
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Graded Cerebellar Lobular Volume Deficits in Adolescents and Young Adults with Fetal Alcohol Spectrum Disorders (FASD).

    Sullivan, Edith V / Moore, Eileen M / Lane, Barton / Pohl, Kilian M / Riley, Edward P / Pfefferbaum, Adolf

    Cerebral cortex (New York, N.Y. : 1991)

    2020  Volume 30, Issue 9, Page(s) 4729–4746

    Abstract: The extensive prenatal developmental growth period of the cerebellum renders it vulnerable to unhealthy environmental agents, especially alcohol. Fetal alcohol spectrum disorders (FASD) is marked by neurodysmorphology including cerebral and cerebellar ... ...

    Abstract The extensive prenatal developmental growth period of the cerebellum renders it vulnerable to unhealthy environmental agents, especially alcohol. Fetal alcohol spectrum disorders (FASD) is marked by neurodysmorphology including cerebral and cerebellar volume deficits, but the cerebellar lobular deficit profile has not been delineated. Legacy MRI data of 115 affected and 59 unaffected adolescents and young adults were analyzed for lobular gray matter volume and revealed graded deficits supporting a spectrum of severity. Graded deficits were salient in intracranial volume (ICV), where the fetal alcohol syndrome (FAS) group was smaller than the fetal alcohol effects (FAE) group, which was smaller than the controls. Adjusting for ICV, volume deficits were present in VIIB and VIIIA of the FAE group and were more widespread in FAS and included lobules I, II, IV, V, VI, Crus II, VIIB, and VIIIA. Graded deficits (FAS < FAE) were consistently present in lobules VI; neither group showed volume deficits in Crus I or IX. Neuroradiological readings blind to diagnosis identified 20 anomalies, 8 involving the cerebellum, 5 of which were in the FAS group. We speculate that the regional cerebellar FASD-related volume deficits may contribute to diagnostically characteristic functional impairment involving emotional control, visuomotor coordination, and postural stability.
    MeSH term(s) Adolescent ; Cerebellum/pathology ; Female ; Fetal Alcohol Spectrum Disorders/pathology ; Gray Matter/pathology ; Humans ; Magnetic Resonance Imaging ; Male ; Young Adult
    Language English
    Publishing date 2020-03-05
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1077450-6
    ISSN 1460-2199 ; 1047-3211
    ISSN (online) 1460-2199
    ISSN 1047-3211
    DOI 10.1093/cercor/bhaa020
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Corrigendum: Graded Cerebellar Lobular Volume Deficits in Adolescents and Young Adults with Fetal Alcohol Spectrum Disorders (FASD).

    Sullivan, Edith V / Moore, Eileen M / Lane, Barton / Pohl, Kilian M / Riley, Edward P / Pfefferbaum, Adolf

    Cerebral cortex (New York, N.Y. : 1991)

    2020  Volume 30, Issue 5, Page(s) 3432

    Language English
    Publishing date 2020-01-31
    Publishing country United States
    Document type Journal Article ; Published Erratum
    ZDB-ID 1077450-6
    ISSN 1460-2199 ; 1047-3211
    ISSN (online) 1460-2199
    ISSN 1047-3211
    DOI 10.1093/cercor/bhaa091
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Inferior Vena Cava Thrombectomy and Stenting as Bridge to Liver Transplantation After Radiotherapy-Induced Thrombosis.

    Meier, Raphael Ph / Kamberi, Shani / Alvarez-Casas, Josue / Lane, Barton F / Bhati, Chandra S / Malik, Saad / Twaddell, William / Shetty, Kirti / Fang, Adam / Kim, Hyun S / Maluf, Daniel G

    Progress in transplantation (Aliso Viejo, Calif.)

    2023  , Page(s) 15269248231212914

    Language English
    Publishing date 2023-11-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2864264-8
    ISSN 2164-6708 ; 1526-9248
    ISSN (online) 2164-6708
    ISSN 1526-9248
    DOI 10.1177/15269248231212914
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Performing a Basic US Examination: Road Map for Radiology Residents.

    Yu, Tiffany T / Wnorowski, Amelia M / Lane, Barton F / Wong-You-Cheong, Jade J

    Radiographics : a review publication of the Radiological Society of North America, Inc

    2019  Volume 39, Issue 4, Page(s) 1075–1076

    MeSH term(s) Humans ; Internship and Residency ; Liver/diagnostic imaging ; Radiology/education ; Ultrasonography/instrumentation ; Ultrasonography/methods
    Language English
    Publishing date 2019-07-08
    Publishing country United States
    Document type Journal Article ; Video-Audio Media
    ZDB-ID 603172-9
    ISSN 1527-1323 ; 0271-5333
    ISSN (online) 1527-1323
    ISSN 0271-5333
    DOI 10.1148/rg.2019190008
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Practical imaging of the spine and spinal cord.

    Lane, Barton

    Topics in magnetic resonance imaging : TMRI

    2002  Volume 14, Issue 6, Page(s) 438–443

    Abstract: Magnetic resonance imaging is the imaging method of choice in most diseases of the spinal canal and cord. Many pulse sequences are available, and in this era of increased expectations and diminishing resources, a practical approach to the most efficient ... ...

    Abstract Magnetic resonance imaging is the imaging method of choice in most diseases of the spinal canal and cord. Many pulse sequences are available, and in this era of increased expectations and diminishing resources, a practical approach to the most efficient spine imaging is needed. Our strategy is a series of protocols tailored to the particular area of the spine and the disease process suspected.
    MeSH term(s) Cervical Vertebrae/pathology ; Humans ; Lumbar Vertebrae/pathology ; Magnetic Resonance Imaging ; Spinal Cord/pathology ; Spinal Cord Diseases/diagnosis
    Language English
    Publishing date 2002-10-14
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1112716-8
    ISSN 0899-3459
    ISSN 0899-3459
    DOI 10.1097/00002142-200312000-00002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Computed Tomographic Angiography of the Abdomen and Pelvis in Azotemic Patients Utilizing 80-kV(p) Technique and Reduced Dose Iodinated Contrast: Comparison With Routine 120-kV(p) Technique.

    Knipp, David / Lane, Barton F / Mitchell, Jason W / Daly, Barry D

    Journal of computer assisted tomography

    2017  Volume 41, Issue 1, Page(s) 141–147

    Abstract: Objective: To evaluate image quality (IQ) of a reduced contrast volume, low kilovolt (peak) [kV(p)] abdominopelvic computed tomographic angiography (AP-CTA) protocol compared to a standard 120-kV(p) AP-CTA protocol.: Methods: A retrospective image ... ...

    Abstract Objective: To evaluate image quality (IQ) of a reduced contrast volume, low kilovolt (peak) [kV(p)] abdominopelvic computed tomographic angiography (AP-CTA) protocol compared to a standard 120-kV(p) AP-CTA protocol.
    Methods: A retrospective image analysis was performed on 103 patients with end-stage renal disease who underwent AP-CTA. Forty-nine patients were scanned at 80 kV(p) with a mean of 48 mL of contrast, and 54 patients were scanned at 120 kV(p) with a mean of 98 mL of contrast. Objective comparison of arterial attenuation, noise, and contrast-to-noise ratio was obtained, in addition to radiation dose. Subjective assessment of IQ, enhancement intensity, and image noise (IN) was scored on a 3-point scale.
    Results: The 6-level aggregate contrast-to-noise ratio for the 80-kV(p) group was 11.8 ± 7.0, compared to 12.4 ± 4.6 in the 120-kV(p) group (P = 0.210). Radiation exposure was significantly lower in the 80-kV(p) group versus the 120-kV(p) group, as measured by average CT dose index (mGy) of 9.0 ± 3.1 and 15.8 ± 5.8 (P < 0.0001), respectively; and average dose length product (mGy × cm) of 490.0 ± 214.1 and 863.1 ± 344.4 (P < 0.0001), respectively. The 120-kV(p) technique scored better for subjective IQ (P = 0.042) and IN (P = 0.004) but not for enhancement intensity (P = 0.205).
    Conclusions: A 50% reduced iodinated contrast dose coupled with 80-kV(p) technique with iterative reconstruction allows for satisfactory AP-CTA studies at a 43% mean radiation dose reduction compared to a standard protocol. Negative but potentially reversible sequelae of this drop in radiation dose include increased IN and reduced subjective IQ.
    MeSH term(s) Azotemia/diagnostic imaging ; Computed Tomography Angiography/methods ; Contrast Media/administration & dosage ; Female ; Humans ; Iodine/administration & dosage ; Kidney Diseases/diagnostic imaging ; Male ; Middle Aged ; Pelvis/blood supply ; Pelvis/diagnostic imaging ; Radiation Dosage ; Radiation Exposure/analysis ; Radiation Exposure/prevention & control ; Radiography, Abdominal/methods ; Reproducibility of Results ; Retrospective Studies ; Sensitivity and Specificity
    Chemical Substances Contrast Media ; Iodine (9679TC07X4)
    Language English
    Publishing date 2017-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80392-3
    ISSN 1532-3145 ; 0363-8715
    ISSN (online) 1532-3145
    ISSN 0363-8715
    DOI 10.1097/RCT.0000000000000478
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: PSA density is complementary to prostate MP-MRI PI-RADS scoring system for risk stratification of clinically significant prostate cancer.

    Frisbie, James W / Van Besien, Alexa J / Lee, Adrianna / Xu, Linhan / Wang, Shu / Choksi, Ankur / Afzal, M Adil / Naslund, Michael J / Lane, Barton / Wong, Jade / Wnorowski, Amelia / Siddiqui, Mohummad Minhaj

    Prostate cancer and prostatic diseases

    2022  Volume 26, Issue 2, Page(s) 347–352

    Abstract: Background: While prostate multiparametric-magnetic resonance imaging (MP-MRI) has improved the diagnosis of clinically significant prostate cancer (CSPC), the complementary use of prostate-specific antigen (PSA) levels to risk-stratify for CSPC ... ...

    Abstract Background: While prostate multiparametric-magnetic resonance imaging (MP-MRI) has improved the diagnosis of clinically significant prostate cancer (CSPC), the complementary use of prostate-specific antigen (PSA) levels to risk-stratify for CSPC requires further study. The objective of this project was to determine if prostate MP-MRI and PSA can provide complementary insights into CSPC risk stratification.
    Methods: In an IRB-approved study, pathologic outcomes from patients who underwent MR/US fusion-targeted prostate biopsy were stratified by various parameters including PSA, PSA density (PSAD), age, race, and PI-RADS v2 score. CSPC was defined as a Gleason score ≥7. Logistic regression was used to determine odds ratios (OR) with 95% confidence intervals (CI). P values were reported as two-sided with p < 0.05 considered statistically significant. ROC curves were generated for assessing the predictive value of tests and sensitivity + specificity optimization was performed to determine optimal testing cutoffs.
    Results: A total of 327 patients with 709 lesions total were analyzed. PSAD and PI-RADS scores provided complementary predictive value for diagnosis of CSPC (AUC PSAD: 0.67, PI-RADS: 0.72, combined: 0.78, p < 0.001). When controlling for PI-RADS score, age, and race, multivariate analysis showed that PSAD was independently associated with CSPC (OR 1.03 per 0.01 PSAD increase, 95% CI 1.02-105, p < 0.001). The optimal cutoff of PSAD ≥ 0.1 ng/ml/cc shows that a high versus low PSAD was roughly equivalent to an increase in 1 in PI-RADS score for the presence of CSPC (4% of PI-RADS ≤3 PSAD low, 6% of PI-RADS 3 PSAD high vs. 5% of PI-RADS 4 PSAD low, 22% of PI-RADS 4 PSAD high vs. 29% of PI-RADS 5 PSAD low, 46% of PI-RADS 5 PSAD high were found to have CSPC).
    Conclusions: PSAD with a cutoff of 0.1 ng/ml/cc appears to be a useful marker that can stratify the risk of CSPC in a complementary manner to prostate MP-MRI.
    MeSH term(s) Male ; Humans ; Prostatic Neoplasms/diagnostic imaging ; Prostatic Neoplasms/pathology ; Prostate/diagnostic imaging ; Prostate/pathology ; Prostate-Specific Antigen ; Multiparametric Magnetic Resonance Imaging ; Magnetic Resonance Imaging/methods ; Retrospective Studies ; Image-Guided Biopsy/methods ; Risk Assessment
    Chemical Substances Prostate-Specific Antigen (EC 3.4.21.77)
    Language English
    Publishing date 2022-05-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 1419277-9
    ISSN 1476-5608 ; 1365-7852
    ISSN (online) 1476-5608
    ISSN 1365-7852
    DOI 10.1038/s41391-022-00549-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Contralateral microemboli following carotid artery stenting in patients with a contralateral internal carotid artery occlusion.

    Casey, Kevin / Hitchner, Elizabeth / Lane, Barton / Zhou, Wei

    Journal of vascular surgery

    2013  Volume 58, Issue 3, Page(s) 794–797

    Abstract: Subclinical microembolization identified on diffusion-weighted magnetic resonance imaging is recognized as an important outcome measure for carotid revascularization procedures. It is generally believed that arch manipulation is the primary reason for ... ...

    Abstract Subclinical microembolization identified on diffusion-weighted magnetic resonance imaging is recognized as an important outcome measure for carotid revascularization procedures. It is generally believed that arch manipulation is the primary reason for developing microemboli in the contralateral hemisphere during carotid artery stenting. However, we identified three patients who developed postprocedure microemboli of the contralateral hemisphere despite a known chronic contralateral internal carotid artery occlusion. Our cases highlight that ipsilateral microemboli may be an underappreciated but an important source of contralateral lesions through patent intracranial collateral pathways.
    MeSH term(s) Aged ; Angioplasty, Balloon/adverse effects ; Angioplasty, Balloon/instrumentation ; Carotid Artery, Internal/pathology ; Carotid Artery, Internal/physiopathology ; Carotid Stenosis/complications ; Carotid Stenosis/diagnosis ; Carotid Stenosis/physiopathology ; Carotid Stenosis/therapy ; Cerebrovascular Circulation ; Circle of Willis/pathology ; Circle of Willis/physiopathology ; Collateral Circulation ; Diffusion Magnetic Resonance Imaging ; Humans ; Intracranial Embolism/diagnosis ; Intracranial Embolism/etiology ; Intracranial Embolism/physiopathology ; Magnetic Resonance Angiography ; Male ; Predictive Value of Tests ; Severity of Illness Index ; Stents ; Treatment Outcome
    Language English
    Publishing date 2013-03-07
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 605700-7
    ISSN 1097-6809 ; 0741-5214
    ISSN (online) 1097-6809
    ISSN 0741-5214
    DOI 10.1016/j.jvs.2012.11.114
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top